I´m so proud to present to you the Multicab Sim cabinet simulator..
here is the soundclip:
http://www.goear.com/listen.php?v=bec1880 (http://www.goear.com/listen.php?v=bec1880)
setup: squier strat, burning crunch, multicab sim, sound card
Till 0:30 the multicab sim is off, then, i put it in, and wow!!
check the last seconds.. really cool cabinet simulation..
check the variety of kinds of speakers it can reproduce..i absolutely love it!!
this is the final schem:
(http://diynoise.googlepages.com/multicabsim.gif)
NOTE: the opamp is a dual TL072/62/82 ,there´s no 4558..
adding a volume control is not a bad idea..i´m happy with just the gain control...
looks like you are only using one of the 4558 opamps. could you not use the other portion of the 4558 for the section you used the tl062 for?
Oh sorry, both opamps are a tl072..one design goal was simplicity, and the fewer parts possible.. 1 dual opamp and 1 transistor is enough for me..
Looks and sounds great! Congrats!!!
really cool! I have to give this one a shot any time soon on my breadboard!
Excellent work Daniel - it looks pretty simple yet flexible. Yes?
When I recover from my submini tube fetish I'll gives this a go...........
Killer design and great sounds!
I'll definitely build it as soon as possible, thanks for sharing ;)
Quote from: frequencycentral on September 01, 2008, 03:39:04 PM
Excellent work Daniel - it looks pretty simple yet flexible. Yes?
When I recover from my submini tube fetish I'll gives this a go...........
yes! that´s what i liked the most..it´s simplicity versus flexibility.. i think it sounds almost like a proffesional cab sim...
Very cool :)
I forgot to post the frequency response graphs:
This is the variation of the low end response
(http://diynoise.googlepages.com/cab_bottom.gif)
This is the variation of theMid response (actually is centered near 400Hz)
(http://diynoise.googlepages.com/cab_flat.gif)
This is the variation of the high end response (is little, but if affects a lot of the tone texture and harshiness..)
(http://diynoise.googlepages.com/cab_top2.gif)
all the possible variations:
(http://diynoise.googlepages.com/cab_all.gif)
the final design has the mid scoop around 400Hz and more pronounced..but this may give you an idea of the flexibility it has..
I really like it. Sounds very flexible! You should be proud of this project! ;D
God i am proud!! it feels so real when playing through my hi fi, like i feel the cardboard of the speaker movin´ when i play with the mid scoop..
i can´t wait to design more fx´s and share them with you guys! I´m starting with a couple of CMOS inverters boosted by a BJT with pre and post eq..
By the way, CMOS inverters seem to be very good filters for other cab sims..maybe the noise can be a problem..
Great Work ! I went canoe camping for three days and I am glad that your post is still there. I was thingking of it while there were no fishes ;D. Happy that you're proud of your project Daniel ! When I will try to build myself a cab sim I will consider yours.
The before/after clip is really a good demo of what a cab sim can do for you. Good job!
i´m thinking of adding an XLR balanced output to it, do you think it worth it?
Might I suggest a BBD splitter to create a stereo spread?
Quote from: dschwartz on September 02, 2008, 01:28:49 PM
i´m thinking of adding an XLR balanced output to it, do you think it worth it?
Depends on if you need it for your p.a. I just used 1/4" jacks on mine, no problem.
Quote from: StephenGiles on September 02, 2008, 01:42:46 PM
Might I suggest a BBD splitter to create a stereo spread?
like adding a mn3007?
it would be nice, but a little over my head..
or is a bbd splitter something simpler?
Quote from: DougH on September 02, 2008, 01:53:07 PM
Quote from: dschwartz on September 02, 2008, 01:28:49 PM
i´m thinking of adding an XLR balanced output to it, do you think it worth it?
Depends on if you need it for your p.a. I just used 1/4" jacks on mine, no problem.
(Sorry, too late for an edit.)
I just realized this wasn't very clear.
What I meant was- If you need XLR for your p.a., mixer, etc, then go ahead and add it. If you don't need it, don't worry about it. Most mixers and etc will accept 1/4" inputs as well.
i know most PA accepts 1/4 plugs.. but for long cable runs, i don´t know if XLR are a MUST, since they cancell out noise
Quote from: StephenGiles on September 02, 2008, 01:42:46 PM
Might I suggest a BBD splitter to create a stereo spread?
One of the nice studio tricks by folks who really know their stuff is to use multiple amps and multiple mics, sometimes involving close and distant micing. Is that the sort of stuff that require substantial time delay, generated by a BBD, or is it really more on the order small phase delays than can be created by some simple combination of lead and lag allpass stages that creates, say, 270 degrees of phase shift over the passband. In other words, the sort of thing that may well give you what a mic positioned equidistant to a 2x12 and 4x10 cab sitting beside each other might give you.
I guess what all of this is leading to is the possibility that a splitter feeding two such cab simulators, with maybe a
very small delay (the kind that allpass stages can produce) could conceivably deliver up some of those multi-cab micing sounds, particularly given how flexible the design is.
Even without any delay inserted, the idea of being able to mimic a cab with a 12" and a 10" speaker is kinda neat. So kiddies, start getting your splitter/mixer units ready now.
Quote from: dschwartz on September 02, 2008, 04:08:18 PM
i know most PA accepts 1/4 plugs.. but for long cable runs, i don´t know if XLR are a MUST, since they cancell out noise
Gotcha.
When playing live I usually plug into a furnished direct box that converts it to XLR for the long cable run.
Quote from: Mark Hammer on September 02, 2008, 04:16:40 PM
Quote from: StephenGiles on September 02, 2008, 01:42:46 PM
Might I suggest a BBD splitter to create a stereo spread?
One of the nice studio tricks by folks who really know their stuff is to use multiple amps and multiple mics, sometimes involving close and distant micing. Is that the sort of stuff that require substantial time delay, generated by a BBD, or is it really more on the order small phase delays than can be created by some simple combination of lead and lag allpass stages that creates, say, 270 degrees of phase shift over the passband. In other words, the sort of thing that may well give you what a mic positioned equidistant to a 2x12 and 4x10 cab sitting beside each other might give you.
I guess what all of this is leading to is the possibility that a splitter feeding two such cab simulators, with maybe a very small delay (the kind that allpass stages can produce) could conceivably deliver up some of those multi-cab micing sounds, particularly given how flexible the design is.
Even without any delay inserted, the idea of being able to mimic a cab with a 12" and a 10" speaker is kinda neat. So kiddies, start getting your splitter/mixer units ready now.
let´s google all pass stages!!!!
hmm.. if i undestood right, all pass filters are the one used in phasers.. so, if i use the filters stage of a phase 90, with no LFO, for example, it will give me a phase delay enough to feel a stereo effect?
so the next question: what do i need to change to adapt to bass guitar? I'd like to sim an 18 or 2x15 cab ;D
hmm this is not something you adapt for bass..it means redefining the filters corner values..
i´ll search for famous bass speakers and see if i can make a bass version..
BINGO!!
i researched different eminence legend speakers..this bass version can go from 18" to 12" bass end, and top response
this is the schem:
(http://diynoise.googlepages.com/cab_schem_bass.gif)
And the new freq response (at different high end responses):
(http://diynoise.googlepages.com/cab_resp_bass.gif)
the "top" pot is 50K
the low end response varies from 100hz to 40-50Hz
the scoop moved from 400hz to 250Hz
enjoy!!
Quote from: dschwartz on September 01, 2008, 11:23:36 AM
I´m so proud to present to you the Multicab Sim cabinet simulator..
here is the soundclip:
http://www.goear.com/listen.php?v=bec1880 (http://www.goear.com/listen.php?v=bec1880)
setup: squier strat, burning crunch, multicab sim, sound card
Till 0:30 the multicab sim is off, then, i put it in, and wow!!
check the last seconds.. really cool cabinet simulation..
check the variety of kinds of speakers it can reproduce..i absolutely love it!!
this is the final schem:
NOTE: the opamp is a dual TL072/62/82 ,there´s no 4558..
adding a volume control is not a bad idea..i´m happy with just the gain control...
Awesome work Daniel!
That sounds really nice and thick good guitar work too!
Quote from: frequencycentral on September 01, 2008, 03:39:04 PM
Excellent work Daniel - it looks pretty simple yet flexible. Yes?
When I recover from my submini tube fetish I'll gives this a go...........
I was also theorizing that this could be a nice addition to the Valve Caster. I really like how the Valvie works with my amp sim. It could make a nice all in one package. I may just have to bread board this too!
Quote from: dschwartz on September 02, 2008, 06:41:00 PM
hmm.. if i undestood right, all pass filters are the one used in phasers.. so, if i use the filters stage of a phase 90, with no LFO, for example, it will give me a phase delay enough to feel a stereo effect?
Yes, that's basically the idea. I used to have an EH Bad Stone phaser back in the 70's and it had a "manual" mode where you could control the sweep manually with a pot. You could hear how it affected the sound, almost like a comb filter kind of thing, but it was static and did not sweep. You may want to allow the amount of phase change to be controlled with a pot in the same way, for different amounts of "depth" or etc. So you would still need the control elements (JFETs for example for a phase 90 like circuit) and an adjustable DC voltage to drive them with, which could be controlled by a pot. Then, for stereo run the phased signal to a separate output jack. Put the phased signal on one channel and the dry on another. You could also mix them for mono to provide a "multi-speaker comb filter" effect, which would sort of emulate how multiple speakers in a cabinet would interact with each other.
Or just use a separate phase shifter or commercial phaser that does this kind of thing and plug that into the output of your speaker sim.
i understood right, then..
i think i´ll use something like that in a rack version, a stereo version, with two cabsim modules, 4 all pass filters for one of them, and a "separation" (depth) and "pan" controls..and maybe add nice FET preamp channels before it and a XLR output.
hmm maybe a TDA7294 or lm3886, and wide range speakers and what a hell of an amp!
well, when i have the time.. and the need, for now, i´m´ pretty happy with this!!!
i think the bass version can be a great success, AFAIK there are not many of those...
Yeah, if you don't draw the line somewhere, pretty soon you're building a full-blown rack mount amp emulator.;-) I've thought about combining one of my distortion pedals with my cab sim- then I wake up and realize I like pretty much *all* of my distortion pedals with my cab sim. So I prefer to keep it simple and modular, and combine/rearrange my building blocks at my whim. That's one of the advantages of building pedals instead of rack "systems" in my opinion- ultimately there is more flexibility. But the 2 differently tuned cab sims for stereo and phaser ideas are good ones, even if they don't all need to be combined in one box. There are a lot of good ideas in this thread- and a lot of different ways of implementing them. (I would love to try the comb-filter/phaser idea at some point).
hmm a separated pseudo-stereo box is not a bad idea, i concur!
with a tl074 and 4 fets (or optos) looks like an easy build...
I have attempted a perf layout for this circuit, which I think is more than interesting.............next one in my to-build list
http://www.aronnelson.com/gallery/main.php/v/Xaviers-shrine-of-noise/Layouts/Policab+simulator.gif.html (http://www.aronnelson.com/gallery/main.php/v/Xaviers-shrine-of-noise/Layouts/Policab+simulator.gif.html)
Please let me know if you find any error. i have used 2x single opamps, I guess it should work, otherwise please correct me
thank you very much for the bass version and perf layout- i will get going on this someday soon!
Hello,
on the perf board C9 is 4,7nF,
NOT 47nF.
HEY that´s a cool perfboard.. but is not quite right..
Actually, the name is "MULTICAB SIM". and the FINAL shem is this one:
(http://diynoise.googlepages.com/cab_schem_3.gif)
The opamps are just 1 TL072/82 or any dual opamp (even though 4558 didnt work, but probably was a bad chip)
I added the input resistor, and the output coupling filter..
The twin t filter is also now up to date (47n caps)
this is my first build of it:
(http://diynoise.googlepages.com/cab1.jpg)
any questions, please ask, i´ll be glad to answer
BTW: i simulated a pseudo stereo effect with all pass filters, and it works pretty good!!
Nice looking build!
haha yeah, i love the design i did.. kind of give you an idea of what it is
The phase-shift I mentioned is a little more complicated than Doug makes it out. Normally, allpass/phase-shift stages either apply increasing amounts of phase-shift as frequency increases or as frequency decreases, depending on the configuration. There are two basic configurations: the more familiar one in which a cap goes to the noninverting input and a variable resistance goes to ground, and its complement in which the cap goes to ground and the resistance goes where you're used to seeing the cap. One is referred to a lead and the other lag, though I honestly can't remember which is which.
If you look at just those components (the R and C), you'll realize that one is a highpass filter section (series C, and R to ground) while the other is a lowpass section (series R and C to ground). The highpass form provides a path that offers less resistance to the signal as frequency increases. The lowpass form offers less resistance to the signal as it decreases in frequency.
The trouble with using only one type is that, while phase-shift does equal time-delay in a way, if the phase-shft imposed only increases or only decreases with frequency, they you end up with what is referred to as "group delay", where the phase-relationship between large portions of the spectrum is so staggered as to disrupt their "psychoacoustic connection" with each other. The analogy I like to use is that of considering how hard it would be to pick out familiar faces in a crowd or group photo when everyone's nose is digitally moved 1cm to the your left and every left eye is nudged 5mm over to the opposite direction. The overall relationship between the components of any complex pattern needs to be preserved for that pattern to be recognized and emerge from against the background noise.
What you want to achieve is a given amount of phase-shift that is equal across the entire spectrum. There are a number of ways you can do this, I suppose. One of them is to have a series of complementary stages that apply a known amount of phase shift below a given point and above a given point. The basic version would be a lead stage plus a lag stage, with the cap values calculated to provide complementary action (this means that the 3db down points are staggered to add up appropriately). keep in mind that phase shift is cumulative (it sums up across stages) So, if the phase shift gradually increases from 200hz up to a point at 3200hz where it maxes out at 90 degrees, then the complementary stage should be such that it gradually provides more phase shift as you move downward from 3200hz until it maxes out at 90 degrees around 200hz. You end up with (in theory) 90 degrees below 200, 90 degrees above 3200, and the sum of both stages between those two points.
Sebastian in Argentina (who uses the handle here of STM) has done a number of designs intended to provide a relatively flat-bandwidth phase shift across the spectrum. These are primarily for the purpose of introducing small fixed full-band delays for producing through-zero flanging using only one BBD, but they will also work for the purpose of mimicing a pair of speakers set slightly apart. In principle, it may seem easier to just use a BBD to produce a very short flat-response delay, but you have to factor in lowpass filters and other noise considerations. It can end up being easier and more compact to use a wee bit of phase-shift.
well, for the test i did with all pass filters (4 in a row), mixing dry signal left, and wet signal right, it sounded pretty good. you can fee how the sound spreads to stereo..
On the transien analysis, i got over 1.5ms of delay at 1kHz, and AC analysis gave me a pretty flat response with a low cut of 40Hz (more than enough for guitar). The phase shift goes from 90° at 40Hz, to 650° at 1kHz and 720° at 4kHz.
I used basically a P90 style filters, but i changed the filtering caps to 22nF and the resistor to ground to 33K..
having the bass response less delayed is not so bad, cause the ears feel stereo spread more over high frequencies than low freqs..
I experimented with a feedback resistor, but i didn´t notice a change..
QuoteThe phase-shift I mentioned is a little more complicated than Doug makes it out.
You're right Mark. And something kept bugging me about this in my subconscious- that is, there's a frequency dependent component in the amt of phase shift in a standard guitar "phase shifter" circuit. But when I remember my Bad Stone, I think my view turned more towards the "comb filter" effect I remembered. I think that would still be useful for replicating some of what happens with a multi speaker cabinet. But a BBD or some other non-freq-dependent scheme might be better for imparting "spatiality". (But in that case, for me, I'd just use an existing delay or reverb.) Then again, it may not make much difference, as Daniel has suggested, given the way we hear bass vs. treble. The only way to know for sure is to experiment.
Very nice work on the finshed enclosure Daniel, I really like the graphic too.
Quote from: tranceracer on September 03, 2008, 01:56:18 AM
Quote from: frequencycentral on September 01, 2008, 03:39:04 PM
Excellent work Daniel - it looks pretty simple yet flexible. Yes?
When I recover from my submini tube fetish I'll gives this a go...........
I was also theorizing that this could be a nice addition to the Valve Caster. I really like how the Valvie works with my amp sim. It could make a nice all in one package. I may just have to bread board this too!
It occurs to me that it would be entirely possible to re-enginner this circuit replacing the two unity gain buffer opamps with a dual triode. So - instead of using a Valvecaster added to Daniel's 'Multicab Sim' you would have a 'Tube Multicab Sim'. I guess it would also be possible to replace the 2N3904 with a triode stage too. Using two dual triodes, this would leave a spare triode which could be used to overdrive the front end. I don't know how differently low voltage triodes would affect the frequency response as oppossed to the solid state version's frequency response. But it would certainly be interesting to find out. I'll put this idea on my 'things to try out with submini tubes' list - if Daniel has no objection to his circuit being hacked!
Although the flat-response phase-shift IS a little more complicated than Doug originally proposed, Daniel's comments got me thinking. Maybe the flatness is not all that critical. Considering how omni-directional the low end is (the very reason why 2.1 and 5.1 systems can exist - you only need one subwoofer), maybe adding some amount of phase shift across everything from, say, 300hz on up is enough to do the job. Realistically, if you had one open back cab with 4x10s, and one closed back cab with 4x12s, and you were standing about 8ft in front of them, exactly what aspects of their individual qualities would your ears be drawn to? Certainly there would be no harmonic content differences in that zone below 300hz.
So, maybe nothing particularly fancy IS required, and everything I described in my earlier note is mere theory-driven overkill.
here is a .rar file with the result of my pseudo stereo generator:
http://diynoise.googlepages.com/pseudostereo.rar (http://diynoise.googlepages.com/pseudostereo.rar)
there are 2 audio files.. clean.wav, wich i downloaded from the web for testing with ltspice (i´m at the office now ::))
and output2.wav..wich has the clean signal on one channel and the effected signal on the other (i don´t know wich is wich)..
play the files one after the other to percieve the difference.. output.wav is clearly stereo!
Sounds cool! I love it!
I'm going to have to try this...
Quote from: frequencycentral on September 04, 2008, 12:16:12 PM
Very nice work on the finshed enclosure Daniel, I really like the graphic too.
Quote from: tranceracer on September 03, 2008, 01:56:18 AM
Quote from: frequencycentral on September 01, 2008, 03:39:04 PM
Excellent work Daniel - it looks pretty simple yet flexible. Yes?
When I recover from my submini tube fetish I'll gives this a go...........
I was also theorizing that this could be a nice addition to the Valve Caster. I really like how the Valvie works with my amp sim. It could make a nice all in one package. I may just have to bread board this too!
It occurs to me that it would be entirely possible to re-enginner this circuit replacing the two unity gain buffer opamps with a dual triode. So - instead of using a Valvecaster added to Daniel's 'Multicab Sim' you would have a 'Tube Multicab Sim'. I guess it would also be possible to replace the 2N3904 with a triode stage too. Using two dual triodes, this would leave a spare triode which could be used to overdrive the front end. I don't know how differently low voltage triodes would affect the frequency response as oppossed to the solid state version's frequency response. But it would certainly be interesting to find out. I'll put this idea on my 'things to try out with submini tubes' list - if Daniel has no objection to his circuit being hacked!
i´m not sure if the sallen key filters would be as efficient with tubes as they are with opamps..
If i were a tube-maniac i´d stick with the opamp filters and replace the first bjt section with a triode.. the other triode i´d put it in the front as a boost, in order to get some "tubish" saturation/compression..maybe i´d study power amp distortion to emulate that (well, i mean TRY) with the triodes cascade..
i would not be offended if you hack my design, as long as you mention me as the original designer (as i mention ROG for inspiration and some ideas)
Quote from: Xavier on September 03, 2008, 09:00:38 PM
I have attempted a perf layout for this circuit, which I think is more than interesting.............next one in my to-build list
http://www.aronnelson.com/gallery/main.php/v/Xaviers-shrine-of-noise/Layouts/Policab+simulator.gif.html (http://www.aronnelson.com/gallery/main.php/v/Xaviers-shrine-of-noise/Layouts/Policab+simulator.gif.html)
Please let me know if you find any error. i have used 2x single opamps, I guess it should work, otherwise please correct me
Have you verified this one yet???
Quote from: audioguy on October 26, 2008, 10:37:18 PM
Quote from: Xavier on September 03, 2008, 09:00:38 PM
I have attempted a perf layout for this circuit, which I think is more than interesting.............next one in my to-build list
http://www.aronnelson.com/gallery/main.php/v/Xaviers-shrine-of-noise/Layouts/Policab+simulator.gif.html (http://www.aronnelson.com/gallery/main.php/v/Xaviers-shrine-of-noise/Layouts/Policab+simulator.gif.html)
Please let me know if you find any error. i have used 2x single opamps, I guess it should work, otherwise please correct me
Have you verified this one yet???
no, it has some errors..
Bummer... I wanted to give it a shot
Daniel ,
Your speaker sim sounds very good but you say it still has errors. Have you solved this because you recommend it ?
And do you have a pcb for it ?
Alf
the perf layout above has errors..not the schematic
Okay . that's clear so I'll design my own pcb.
Thanks, Alf
I have a board etched a drilled. I'm really excited about building this one. Are there default settings for certain popular speaker cabs?
The schematic for the bass version is not showing up ,
Daniel would you mind reloading it or sending it to me ?
This does sound really good IMO.definetly worth trying out.
yeah nice aroud 0.50...
love a scoop tho..............good stuff!..
I too am interested in the Bass version which isn't showing up. Also the all pass pseudo stereo schematic isn't showing up either.
Anyone have these they can repost?
I don't know if there is any interest in this, but I made a pcb for this (unverified but it should work) and I thought someone might want to use it. I put it on my website (http://www.daanvanhasselt.com/multicabsim.zip), it's a .zip with a layout, pcb, schematic and partslist.
i am inderested to build this cab sim.can you post the schematic or layout from your final edition,with stereo feel.
my first post!
I really like to build this nice sounding cab-sim (the guy from Chili, Daniel?, builds more nice thinks!) and use it not only for guitar but also for bass guitar.
So, I want to use switches to change the initial frequencies to different settings.
I can solder and build things but I don't know how they works.
Can somebody please help me with this?
to change the bottom frequency do I have to change C11?
or also C7?
to change the top frequency do I have to change C4?
or also C3?
to change the mid-scoop do I have to change C9?
or also C6? I was thinking both....
how does it works? changing to lower condenser-values also lower the frequency?
and higher changes the frequencies up?
And what are good starting-values to change the condensers?
I appreciate all sort of help and thanks!
here's an alternative schematic I made. double-checked:
(http://imageshack.us/a/img832/7365/multicabsim.jpg)
Quote from: MarsSound on October 06, 2012, 05:44:09 AM
here's an alternative schematic I made. double-checked:
(http://imageshack.us/a/img832/7365/multicabsim.jpg)
Nice job! So, you built it then? I really like the sound of this sim!
Quote from: J0K3RX on October 07, 2012, 11:48:57 AM
Nice job! So, you built it then? I really like the sound of this sim!
100% Sure I will build this one!! I think it's sound very good and you can even change it's character.
but I want also a switch/knob for changing its frequency-responce to guitar or bass guitar speaker-settings.
and maybe beyond that....
so first I have to figure out what components change the filters fixed frequencies. I really don't know yet.
I am asking for help about that! anby help will do.
ok, sorry.....I made some big mistakes. this one has to be correct. I did my best best:
(http://imageshack.us/a/img411/7365/multicabsim.jpg)
Quote from: MarsSound on October 09, 2012, 03:50:21 PM
ok, sorry.....I made some big mistakes. this one has to be correct. I did my best best:
(http://imageshack.us/a/img411/7365/multicabsim.jpg)
ok, now I'ma have to check yer work ::) I was just gonna build it according to your drawing but now...? :icon_wink: I can cross ref the original, no biggie.
Quote from: J0K3RX on October 09, 2012, 07:35:49 PM
ok, now I'ma have to check yer work ::) I was just gonna build it according to your drawing but now...? :icon_wink: I can cross ref the original, no biggie.
there was only one big mistake. I changed it and now it must be ok. I made this schematic to get a better picture of the TL072.
what you can do is take the original and my schematic and check once for mistakes. I couldn't find any.
I will build it today!
I'm just messin with you giving you a hard time :icon_wink: I really appreciate you doing this! :icon_biggrin:
Quote from: J0K3RX on October 10, 2012, 02:27:05 AM
I'm just messin with you giving you a hard time
I know! ;)
Question:
The sound sample uses the burning crunch, but does this cab sim work with a clean signal? Or it has always some distortion build in?
Thanks.
Quote from: tca on October 10, 2012, 08:51:43 AM
Question:
The sound sample uses the burning crunch, but does this cab sim work with a clean signal? Or it has always some distortion build in?
Thanks.
the cab sim is doing nothing more then EQing: highpass, midbandpass en lowpass filtering
together they form the freq. charateristics of a typical guitar-amp speaker.
I think the idea is to do just that. no gain boost nor a kind of distortion
whatever happened to the 'pseudo stereo' bit?.....sounds good!.. :icon_cool:
http://www.diystompboxes.com/smfforum/index.php?topic=70445.msg567411#msg567411
edit:
had a go at a layout from the original schemo on page 1..
(https://dl.dropbox.com/u/7464107/multicabsim.jpg)
nice work!
I never use this kind of boards. to much solder and messy things at the end.
I am busy to make a version with lines.
Quote from: MarsSound on October 10, 2012, 11:33:35 AM
nice work!
I never use this kind of boards. to much solder and messy things at the end.
I am busy to make a version with lines.
vero board?...
Quote from: deadastronaut on October 10, 2012, 11:44:45 AM
vero board?...
yep. stripboard / veroboard. did'nt know the name.
I don't understand why people uses the board with only holes, like your layout.
you have to solder a mess on the backside to get the conections.
with veroboard you allready have most of the connections...it will get some bigger maybe..but for me no problema!
Quote from: MarsSound on October 10, 2012, 01:20:27 PM
Quote from: deadastronaut on October 10, 2012, 11:44:45 AM
vero board?...
yep. stripboard / veroboard. did'nt know the name.
I don't understand why people uses the board with only holes, like your layout.
you have to solder a mess on the backside to get the conections.
with veroboard you allready have most of the connections...it will get some bigger maybe..but for me no problema!
Robs layout is mainly used to etch... not perf board. You "could" used perf board with his layout and connect with bus wire but I believe he intended for it to be etched...
Great layout Rob! It's really funny because my layout was almost the same as yours ??? Weird huh... well, not really but hey.
I don't know what happened to the pseudo stereo? Looks like some stuff was removed throughout this post?
Quote from: MarsSound on October 10, 2012, 09:09:54 AM
the cab sim is doing nothing more then EQing: highpass, midbandpass en lowpass filtering
together they form the freq. charateristics of a typical guitar-amp speaker.
I think the idea is to do just that. no gain boost nor a kind of distortion
Ok, I get the idea. But why not use a EQ for that?
Cheers.
Quote from: deadastronaut on October 10, 2012, 09:31:03 AM
whatever happened to the 'pseudo stereo' bit?.....sounds good!.. :icon_cool:
http://www.diystompboxes.com/smfforum/index.php?topic=70445.msg567411#msg567411
edit:
had a go at a layout from the original schemo on page 1..
(https://dl.dropbox.com/u/7464107/multicabsim.jpg)
Rob, you didn't happen to build it or bread board it yet by any chance did you? :-\
Quote from: tca on October 10, 2012, 05:17:00 PM
Ok, I get the idea. But why not use a EQ for that?
Cheers.
that's something I also want to know. With a graphic EQ you can 'build' any speaker you want.
maybe it's because it's easier and faster to plug in a speaker simulator. and also more handy and little?
Quote from: J0K3RX on October 10, 2012, 02:01:16 PM
Robs layout is mainly used to etch... not perf board. You "could" used perf board with his layout and connect with bus wire but I believe he intended for it to be etched...
I don't know what happened to the pseudo stereo? Looks like some stuff was removed throughout this post?
[/quote]
I'm sure this layout really won't work on a vero board. You need a layout that is based on the tracks of the board and this layout is'nt right for that.
You can use it for eching I think. I wish I could do that. Never did that before.....
I would be nice to have a schematic of the pseudo-stereo! it will be an FX-unit that is really new and original.
you could get pseudo stereo with different EQ on left and right, or with stereo chorus of flanger/phaser. and of course with stereo ambient and verb.
but this thing will do another trick: it makes a kind of copy of the original sound. Sounding the same but on a subtle level it isn't.
would be nice to put other EFX after this stereo-unit.
it works with all-pass filters and phase-shifting but thats all I know......wish I had a schematic to build it!
-
@jim: haven't tried it on bread or build yet, but i like the sound of the original demo, it definately has a wide range of adjustment going by the clip..
now wheres that (pseudo stereo) mod ::)...) slight delay on one channel....that would be well worth building!...
or while i think of it, a ''phase invert'' like on many mixing desks...2 outputs, one phase inverted...to get that dimensional ear thing going on...
@mars: yes my layouts are pcb, intended to be etched n drilled.
vero projects end up being to big imo...and all it takes in one tiny burr of copper to make you debug for hours....
its quicker to build, but i prefer a pcb for a nice fit into a 1590b. ;)
btw have you downloaded DIYLC ?..for designing vero.pcb etc....great prog!
http://code.google.com/p/diy-layout-creator/
edit: a phase invert like this...first clip recorded standard stereo, second clip right channel 'flipped' inverted....gives that stereo dimension....suck and blow effect.
https://dl.dropbox.com/u/7464107/phaseinvertright.mp3
would be an essential+ cool addition imo , 1 input, 2 outputs..option of inverting both outs...for recording purposes..... ;)
now to find a suitable circuit to add on. ::)
btw : recorded using mono guitar in to mixer, out to stereo recording...no panning...just inverting the right wave... ;)
Quote from: deadastronaut on October 11, 2012, 04:08:24 AM
slight delay on one channel....that would be well worth building!...
or while i think of it, a ''phase invert'' like on many mixing desks...2 outputs, one phase inverted...to get that dimensional ear thing going on..
btw have you downloaded DIYLC ?..for designing vero.pcb etc....great prog!
http://code.google.com/p/diy-layout-creator/
with slight delay on one channel you don't create stereo. you are more in the zone of panning. try it yourself:
copy a sound file to another track. one 100% left, the other full to the right.
put some delay on one file by shifting it a little to the right. or use a real echo with 10, 20 ,50 mS.
and more delay gives more panning to one direction.
phase invert gives a very bad stereo-picture. It isn't pleasant for the ears and mind. it works differently with headphones..
I doin't like it! it is also not a good stereo-startingpoint when you want to work with more FX after the invertion.
the pseudo-stereo story in this topic was about using all-pass filters and that will give a very nice good basic stereo-effect. thats what I want!
the layout software won't work on my old mac.....:-(
well i was just thinking aloud really.... :)...crack on. ;)
Quote from: deadastronaut on October 11, 2012, 07:06:25 AM
well i was just thinking aloud really.... :)...crack on. ;)
what you want, is not so difficult. you can do it very easy with a stereo-signal. just swap the + and - of one of the channels.
with mono it is the same thing, but maybe you need some boosting / amplifying to get a good split-signal.
one big big problem is that you will lose all signal if the stereo will be bring back to mono by adding the channels:
(http://imageshack.us/a/img40/5190/invertstereo.jpg)
Quote from: deadastronaut on October 11, 2012, 07:06:25 AM
well i was just thinking aloud really.... :)...crack on. ;)
phase invert is very easy done with a switch, without an electronic circuit:
(http://imageshack.us/a/img811/2287/phaseswitch.jpg)
I think one of us should build this thing first and verify working then we can worry about the mods... I don't see where the stereo or phase inversion would be much of a benefit when recording direct which is what this would probably be used for most...? You can double/triple/quad guitar tracks and add slight delay, chorus etc. and do all sorts of manipulation when recording... I guess you could go direct to mixer live with it but that is the minority I would think? Don't get me wrong, very cool ideas but I wanna here this thing work "good" first! :icon_wink: There are not many "good" cab sims out there besides the Palmer and a select few others.. If this would come close it would be GOLD in my book!! After using impulses I am hard pressed to find a hardware solution that comes close!?
Quote from: J0K3RX on October 15, 2012, 11:54:23 PM
I think one of us should build this thing first and verify working then we can worry about the mods... I don't see where the stereo or phase inversion would be much of a benefit when recording direct which is what this would probably be used for most...?
the problem in this topic is that there are two different subjects without any relation: the multi-cabsim and something about making pseudo-stereo effects.
so, the phase-invert thing has nothing to do with the speaker-sim.
I am hard working on a vero-board layout!
It will be a little weird...with two parts on the board, but I can't find another solution to keep it tide.
I will post it when I have builded a good working version!
@: jim yes i agree. ( i just went off on a tangent as the'' pseudo stereo'' sounded just like a phase inverter to my ears )
@mars: yeah i use that for my diy sustainer switching ........anyway no problem, i'll just shut the @#$% up ok... ;D
In an old National Semiconductor application note - by memory - Pseudo stereo can be crated by using the following method:
left channel = input signal - processed signal
right channel = input signal + processed signal
"middle" = original signal
Stereo image can be changed depending on how you mix these 3 signals.
This is similar to the "Tina Turner" trick used in studioes, where original mono vocal is kept in midle, and hard left is original pitched +3 cent, and hard right is pitched -3 cent. This is a great method of fattening up a vocal track or a single instrument.
BR
Kurt
ok,
my vero-board layout is ready, is tested and works 100 %!
it is a little-a-bit strange layout but I wanted it to be as little as possible. here is a pic of the filled board:
(http://imageshack.us/a/img441/8213/mcs1.jpg)
I can put my vero-board layout here in this tpoic if somebody wants it...
Yes please ;D
Quote from: MarsSound on October 11, 2012, 06:02:02 AM
the pseudo-stereo story in this topic was about using all-pass filters and that will give a very nice good basic stereo-effect. thats what I want!
Some time ago I was looking for something like that. These are the two links that I thought to be useful:
http://www.ethanwiner.com/St-Synth.html
and a patent http://www.google.com/patents/US4239939
At the time I thought that the schem of the patent would give a good result.
Cheers.
Quote from: MarsSound on October 21, 2012, 01:10:45 PM
I can put my vero-board layout here in this tpoic if somebody wants it...
That would be nice!!!
ok, here's my vero layout.
it's by hand so maybe somebody can make a better graphic version with special software.
and if somebody finds mods to make the layout more easy.... please tell!
(http://imageshack.us/a/img109/2345/veroboardmcs.jpg)
Hi guys, here it is my veroboard version of the MultiCab Sim schematic, is not verified so if someone wants to double check this, go for it, suggestions are welcome.
I did my best here consider that's the first time I make a veroboard from schematic, however I still having some questions (for the people who knows more about electronics here):
- Are all the pots linear?, which is the best option for each potentiometer, shouldn't be Gain LOG?
- Are the pot lugs in the correct position? (I still having doubts about the reading order of a potentiometer in a schematic)
(http://www.aerhalev.net/alex/multicabsim.jpg)
And it's verified!, I only did a small change from the previous layout, just change "Bottom 3" to "Bottom 1" and "Bottom 1 and 2" to "Bottom 2 and 3" (Reversed Pot), here it is the updated layout:
(http://www.aerhalev.net/alex/multicabsim_final.jpg)
Any sound samples?
+1
Hi,
I just breadboarded the circuit (without the stereo stuff), it actually sounds great ! Thanx a lot for that nice project, Daniel !
Best regards.
Eric
Awesome stuff. Anybody ever find the bass version that disappeared?
Quote from: mth5044 on February 04, 2013, 02:51:58 PM
Awesome stuff. Anybody ever find the bass version that disappeared?
+1
I'm also highly interested in the bass version.
Quote from: ricothetroll on January 26, 2013, 12:49:41 PM
Hi,
I just breadboarded the circuit (without the stereo stuff), it actually sounds great ! Thanx a lot for that nice project, Daniel !
Best regards.
Eric
any sound clips?
Zombie - This is an old one but from the sound clip on the first post from dschwartz it's a great sounding sim!
Here's the sound clip if you missed it -> http://www.goear.com/listen.php?v=bec1880
I used the "Compare to Schematic" verification tool and passed 100%
(https://dl.dropboxusercontent.com/u/11178619/Multicab/MCS_FRONT.jpg)
(https://dl.dropboxusercontent.com/u/11178619/Multicab/MCS_BACK.jpg)
nice, thats got a good range to it... 8)
Jim are your boards available for use at a PCB service?
I notice that one is double sided,too much for a toner transfer etching.
If so can you post a link?
You have a few other PCB's I would like to try when I am able to afford too.
Quote from: Brymus on April 28, 2014, 11:13:15 AM
Jim are your boards available for use at a PCB service?
I notice that one is double sided,too much for a toner transfer etching.
If so can you post a link?
You have a few other PCB's I would like to try when I am able to afford too.
Bryan, I was gonna do a run of them but haven't had the money or the time lately... I uploaded the gerbers to OSH Park and shared the project so, if anybody wants to have a go it's about $22.00 for 3 boards.. a little over $7 per board, all ya gotta do is order them..
http://oshpark.com/profiles/J0K3RX
I reorganized the original schematic, you can check it here. If you order them you will have to use this schematics RefDes to populate the board.
https://dl.dropboxusercontent.com/u/11178619/Cab%20Simulation/Multi-cab.pdf
Other than the part designations being redone, it's identical to the original.
Here is the board check against the schematic with 100% no errors. So, if the schematic is correct then, so is the layout... :icon_wink:
https://dl.dropboxusercontent.com/u/11178619/Cab%20Simulation/Image%2023.jpg
Here is the front and back of what you will get..
(https://dl.dropboxusercontent.com/u/11178619/Cab%20Simulation/i%20(2).png)
(https://dl.dropboxusercontent.com/u/11178619/Cab%20Simulation/i.png)
Thank you Jim,
Thats not a bad deal if 3 people were to get together it would be about 9$ a piece after shipping twice.
I was hoping your tube pedals and fet emulators would be on your OSH profile,I was thinking I would just order one of each as it would cost about the same as etching after buying the stuff to make more ferric chloride and some copper clad,drill bits,acetone, granted I could make about twice as many etching them myself,but for the time and trouble involved using good quality PCBs that are already pre fabbed and drilled,ect saves a huge amount of time per build.
Now that I think about it,after including toner ,and everything involved,getting pre made PCBs VS etching yourself I think the only advantage to etching your own is the satisfaction of doing it all,and the ability to make a quick test PCB with out waiting for turn around and having enough designs to warrant placing an order.
^ yeah i'm with you there, ive been getting my head around eagle and the upload procedures....slowly.. :icon_rolleyes:
its a bit of a faff at first and am still learrning , but the end results are worth it imo...i'm waiting on some chasm reverb boards. (seeed not osh) 8)
finally breaded this up.....very cool..
ive been on a cab sim quest lately.. 8)
A lot of images of these past posts are gone, including all veros but one - can someone upload them again!? final schem is the one at the first post!?
hi adriano, i breaded the first page schemo IIRC...
Quote from: Renegadrian on December 27, 2015, 09:47:55 AM
A lot of images of these past posts are gone, including all veros but one - can someone upload them again!? final schem is the one at the first post!?
+1 here.
I'd love to try this one, but all schemos of the thread are gone!
Oh, my...
I spent yesterday and this morning retracing the circuit based on alexirae's vero layout, because all schemos were gone, and now when I was ready to repost it here Jim's files are back online. Maybe it was a glitch on Dropbox.
Jim's files:
- PCBs at OSH Park: http://oshpark.com/profiles/J0K3RX
- Schematic: https://dl.dropboxusercontent.com/u/11178619/Cab%20Simulation/Multi-cab.pdf
I loved the fact that Daniel used two capacitor multipliers ("inverted gyrators") for two of the filters.
FYI... I happened upon this the other day and seems our long lost friend
Mr.Noisemaker has indeed been making some
Noise! \m/ :icon_twisted: \m/ And a pretty damn cool cab simulator + DI box as well :icon_wink: http://www.dsmnoisemaker.com/
I like it! Double Trouble + :icon_twisted:
Hey nice that you noticed!!
I took the multicab sim idea a few steps further and it turned out pretty nice!!
Quote from: dschwartz on January 12, 2016, 09:09:30 PM
Hey nice that you noticed!!
I took the multicab sim idea a few steps further and it turned out pretty nice!!
Yeah man, I like it a lot and you did take it few steps further! Really great sound, very versatile and if you are trying to sell a lot of these it was a great break getting Ryan Bruce to demo it on Riffs, Beards & Gear!! I watch his videos all the time to keep an eye on new stuff and he is a heavy player which I dig... :icon_twisted:
Yeah i have mixed feelings about that video, fluff spoke wonders about it, but the sound track was not good..he set it up too dark and buried under the mix...it really sounds much better than that
Quote from: dschwartz on January 19, 2016, 10:49:30 AM
Yeah i have mixed feelings about that video, fluff spoke wonders about it, but the sound track was not good..he set it up too dark and buried under the mix...it really sounds much better than that
Yeah.. does sound a bit buried and dull in that demo. You could ask him to re-mix the video and bring the guitar to the front a bit more? On the other hand it looked like he was using the "Two Notes Le Lead" for the preamp which I have yet to hear a good demo for... Ironically, this video for your OmniCabSim is the best sounding demo for that Two Notes preamp that I have heard so far. I think maybe if he would have used a different preamp like the MXR EVH5150 pedal or the Atomic Amplifire it may have sounded a little better but I dunno.. He seems to be more of a straight up amp/mic/cab kinda guy and has a bit of trouble getting "that sound" out of simulation pedals etc.. I think he tries to dial it up in the DAW where he usually does for real amp/cab/mic setups and it doesn't pan out the same. Anyway, I know the feeling of having somebody demo your stuff and then being like WTF, that sounded like total sh!t! You don't want to ask them to try it differently or run it a different way etc cause they are basically kinda doing you a favor anyway...
You could send one to Ola Englund for a demo :icon_lol: At least you know it would sound exactly the same as all of his other demos that all sound the same...
Yea ..i rather make more demos myself or find other guys, i ran out of units to give away..maybe when i make a bigger run..but i have to redesign the pcb to fit more options and match the enclosure..its a pita..
I'm confused, where are the other two pots on the layout? The video shows 6.
Quote from: JCSIFU on January 26, 2016, 01:15:50 AM
I'm confused, where are the other two pots on the layout? The video shows 6.
The pedal shown in the video is different than the pedal discussed elsewhere in the thread and the schematic has not been posted.
By the way, there is a vero layout now for the original cab sim:
http://tagboardeffects.blogspot.com/2016/01/multicab-simulator.html
:)
one little niggle that bugs me is:
i wish tagboard would add schemo's too.. :-X
moan over.. ;)
as you were... :)
There is a link back to this thread (see the word "here" in the first sentence :icon_biggrin:).
Quote from: dschwartz on January 19, 2016, 10:49:30 AM
Yeah i have mixed feelings about that video, fluff spoke wonders about it, but the sound track was not good..he set it up too dark and buried under the mix...it really sounds much better than that
I thought the demo Fluff did sounded great and its the only reason I stumbled across this thread is because of the demo he did and I started researching... pretty awesome product you have there and great price point.
Quote from: vigilante397 on January 26, 2016, 01:47:17 PM
Quote from: JCSIFU on January 26, 2016, 01:15:50 AM
I'm confused, where are the other two pots on the layout? The video shows 6.
The pedal shown in the video is different than the pedal discussed elsewhere in the thread and the schematic has not been posted.
gotcha, thanks
Take yer time and start with the first post, lots of good info! Probably not too hard to add some more tone shaping but, as it stands, the 4 knob version has plenty of tonal possibilities and should work well for most people. :icon_wink:
I almost forgot... To add to the confusion there is also this thread with the CMOS version :icon_lol:
Scroll down to reply #16 and 17
http://www.diystompboxes.com/smfforum/index.php?topic=79715.0
Might want to have a look at this one also... I haven't built it but it looks interesting. May give you a few ideas.. :icon_wink:
https://sites.google.com/site/distorque/home/projects/speaker-sim
Quote from: elbow667 on January 27, 2016, 04:15:15 PM
Quote from: dschwartz on January 19, 2016, 10:49:30 AM
Yeah i have mixed feelings about that video, fluff spoke wonders about it, but the sound track was not good..he set it up too dark and buried under the mix...it really sounds much better than that
I thought the demo Fluff did sounded great and its the only reason I stumbled across this thread is because of the demo he did and I started researching... pretty awesome product you have there and great price point.
Hey man thanks for your kind words..
If anyone wonders, the omnicab is a more complex circuit than the multicab, i chaged a lot of things, values, devices, but the principle is the same..
Daniel,
Any way we can see the new schematic? I am sure I know the answer, but still had to ask.
Thanks for the original design!!
Rob
Mr.Schwartz, is it possible to add a speaker thru features so I can use it in conjunction with my amps?
Yes you can do that adding a buffer at the input and taking the through input from the input jack..
Does anyone have a DIYLC layout version of this? I don't have any strip board. Will have to etch.
Quote from: BoogiemanX on March 12, 2016, 04:34:48 PM
Does anyone have a DIYLC layout version of this? I don't have any strip board. Will have to etch.
It's your lucky day! I finished this layout for myself a couple of weeks ago, and I thought I'd wait to verify it before posting. Since you asked though, I'm putting this out unverified. It might even fit a 1590A if you try hard enough...
pdf for higher quality (http://tinyurl.com/zo8wopa)
(http://i.imgur.com/aUFqV1e.png)
Awsome job looks good. Wish I could say the same about my etching. Lol
Gonna try some hp presentation paper this time. I've been having a lot of trouble with the etching process.
Hi! I read that Condor has more bass than MultiCab Sim. Some confirm? And if I would add more bass to the MultiCab Sim what should I change?
Are there some available links with a sound test?
Thank you!
Quote from: jellyjams on March 14, 2016, 05:12:37 AM
Quote from: BoogiemanX on March 12, 2016, 04:34:48 PM
Does anyone have a DIYLC layout version of this? I don't have any strip board. Will have to etch.
It's your lucky day! I finished this layout for myself a couple of weeks ago, and I thought I'd wait to verify it before posting. Since you asked though, I'm putting this out unverified. It might even fit a 1590A if you try hard enough...
pdf for higher quality (http://tinyurl.com/zo8wopa)
(http://i.imgur.com/aUFqV1e.png)
The PDF Link is broken. Could you fixit?? Have you already verified the layout??
The link works fine for me.. :icon_wink: PM me your email and I will send it to you.
Quote from: Elijah-Baley on May 10, 2016, 06:19:20 AM
Hi! I read that Condor has more bass than MultiCab Sim. Some confirm? And if I would add more bass to the MultiCab Sim what should I change?
Are there some available links with a sound test?
Thank you!
I'm also wondering how to increase the bass response of this circuit. Any ideas?
i built the MultiCab Sim, but i have to try it better. I'll say you about the bass, but I can't compare directly with the Condor because I don't have it.
A question, please. I plug my guitar to directly on my pc, to the mic input of the built-in audio card of the motherboard. And I get the sound just on the left (or right?) channel.
I still have put in the box an MXR Headphone, it can help me?
I want to record, for example, my BSIAB, what is the right order?
Guitar -> BSIAB -> MultiCab Sim -> MXR Headphone -> PC
???
Thank you.
JOKER, how would you compare this to the Simple Cab Sim you recommended in another thread? The one built by Lart.
I'm sorry for commenting on an old post but I had 3 of the osh park boards made then realized I can't find the schematic anywhere now. does anyone happen to have the schematic the can share for Jim's layout please and thank you! again sorry for posting on something so old but for some reason, I'm unable to send a PM
**update PM finally worked
Quote from: Hatredman on January 01, 2016, 10:43:12 AM
Oh, my...
I spent yesterday and this morning retracing the circuit based on alexirae's vero layout, because all schemos were gone, and now when I was ready to repost it here Jim's files are back online. Maybe it was a glitch on Dropbox.
Jim's files:
- PCBs at OSH Park: http://oshpark.com/profiles/J0K3RX
- Schematic: https://dl.dropboxusercontent.com/u/11178619/Cab%20Simulation/Multi-cab.pdf
I loved the fact that Daniel used two capacitor multipliers ("inverted gyrators") for two of the filters.
Hi Friends,
I have built this MultiCab Sim, It works well in terms of Signal Shaping, but I get a lot of noise (rain noise). I have used the Schematic available here, designed the PCB in Kicad and verified every single connection/component.
I appreciate any advice on how to fix the noise problem.
Thank you!
(https://i.postimg.cc/bsrxH6H4/20191012-115225.jpg) (https://postimg.cc/bsrxH6H4)
(https://i.postimg.cc/Q9WLTgY7/multicab1.jpg) (https://postimg.cc/Q9WLTgY7)
Hi Folks,
I have added some capacitors and decoupled the op amp reference voltage (vcc/2) as suggested by a friend. I have not tested it yet in another clean build but i managed to hack my previous build and it seems to work. The 47p cap at output was a desperate measure, but i think it is required only as a last resort.
(https://i.postimg.cc/6Tcxbf0J/multicab-svg.png) (https://postimg.cc/6Tcxbf0J)
Hi, my first post !
I'm inexperienced and have some questions about the schematic of post # 95:
Which pin is 1, 2 and 3 in a potentiometer?
What kind of capacitors are they, ceramic, polystyrene, polyester?
Thanks in advance and sorry for my bad English.
Welcome to the forum... :icon_biggrin:
For the pots...
(https://i.postimg.cc/hQxgjsd8/Screen-Shot-2020-11-27-at-10-46-37-AM.png) (https://postimg.cc/hQxgjsd8)
For the capacitors, I think you can use about any capacitor type (maybe not electrolytic) as long as you can squeeze them in the vero layout
Thank you very much! I would like to put a switch and use it as a pedal, when it is off the signal to pass through it.
I will use it with a Solid-state Fender Blackface Preamp that I have made.
Quote from: jellyjams on March 14, 2016, 05:12:37 AM
Quote from: BoogiemanX on March 12, 2016, 04:34:48 PM
Does anyone have a DIYLC layout version of this? I don't have any strip board. Will have to etch.
It's your lucky day! I finished this layout for myself a couple of weeks ago, and I thought I'd wait to verify it before posting. Since you asked though, I'm putting this out unverified. It might even fit a 1590A if you try hard enough...
pdf for higher quality (http://tinyurl.com/zo8wopa)
(http://i.imgur.com/aUFqV1e.png)
Does anyone verify this layout?