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i have the GGG bsiab on my breadboard at the moment, but it sounds way to thick, sounds too muffled...(using all j201's)

so i looked around and found loads of bsiab schematics that are all very different...

which is the one that has the 'best' tried n tested..permanently on your pedalboard   results..?.. ;)

Quote from: deadastronaut on September 23, 2011, 05:41:16 AM
i have the GGG bsiab on my breadboard at the moment, but it sounds way to thick, sounds too muffled...(using all j201's)

so i looked around and found loads of bsiab schematics that are all very different...

which is the one that has the 'best' tried n tested..permanently on your pedalboard   results..?.. ;)

If you are into hi gain you might like xbananov's "BSIAB extreme" better.

(http://forum.gtlab.net/yabbfiles/Attachments/bsiab_x_001.GIF)

I think you can use 2n5457/58 or BF245A instead of those russian jfets.

cheers dave, yeah i see that one, i couldn't translate the page though....i'll give it a go!.. ;)

yep i'm a high gain fan indeed...\m/   :icon_twisted:   \m/..... have you built/tried this version?..

Not really, but when it comes to jfet emulations those russian guys sure know their stuff. I've built the Fet Twin and it's an amazing sounding circuit.

yep they sure do, i heard a few clips of other russian projects that sounded very mean..and tight...ideal metal/thrash stuff..

fet twin?...which one is that?..

right i have the bsiab -x on breadboard, its got much better potential than the standard bsiab2 , its nearly there... :icon_cool:

the tone is great, and the gain is proper...but i'm getting that off-biased gating effect...hmmm...

might have to put some 100k trims on the fets...?..what dya think?...

Quotemight have to put some 100k trims on the fets...?..what dya think?

I think the only place it would make a difference is on T5 (Q5).  Don't bother with the others as they are forming a pair of mu-amps.

cheers walt,

i just probed it from each fet, and 4 - 5 seem to be the gating culprits..

i stuck a 100k trim on Q5 biased to 4.5-5v but it still gated ...i'll stick a 100k trim on Q4 and see how that goes..

btw, the first 1 and 2 fets outputs sounds great on their own too.....hmmmm...

i'm getting there...nearly.. :)

@#$%ing hell, this kicks ass...got the fets sorted, this is a bad ass metal mother@#$%er..

i much prefer this to my boogie..better tone etc, its got a nice chunk to it and only 3 pots too.......my quest for a great metal/thrash pedal may be concluded...\m/   :icon_twisted:  \m/

i have lots of oscillation, but hey its on breadboard right... :icon_rolleyes:

check this mother@#$%er out...straight into bread and a mixer, no amp...but still rips... :icon_twisted:

http://dl.dropbox.com/u/7464107/bsiabx.mp3

Cool.  Nice demo.  I had the same reaction when I built my first BSIAB - like finding the Holy Grail of OD.  I've built a dozen since then - some so tweaked they were hardly recognizable.  This has to be my favorite pedal - without exception.

cheers, yep i know what you mean about 'holy grail', ive been on this quest for years ... :icon_rolleyes:

i really like it, i'll try it on my marshall avt  tomorrow, see how it sounds...

probably have a few tweaks too...i hope i can get rid of any oscillation when boxing it up..

shielded in/out etc should do it...did you have any problems with that?...



i'll knock up a pcb layout for those interested, which i'm pretty sure lots of you metal nutters are.. :icon_twisted:
i'm on it now.... ;)

edit: here we go...i'll post a pdf soon-ish, when ive done tweaking and built/verified it ok.. ;)

(http://dl.dropbox.com/u/7464107/bsiabxpic1.jpg)

still sounding great ive made a few tweaks here n there...

anyway, heres yet another version...ill try this one too...

http://diyfactory.ru/images/stories/pics/lart/bsiab2/bsiab_x2-1.gif

whats happening with that fet/led combo on the right?.... ???

Quote from: deadastronaut link=topic=93909.msg809295#msg809295 date=1317007848

whats happening with that fet/led combo on the right?.... ???
/quote]

Looks like a DPDT switching indicator like the Millennium bypass.  Just a guess.

oh yeah,  that makes sense now!....cheers tony. :)

hey what did you end up using in your version astronaut?

i haven't finished it yet!..its still on breadboard,

when i have it how i fancy i'll post it my final results/pcb/layout  up ok..

i would highly recommend breadboarding this beast...you won't regret it...if you like hi gain of course!... :icon_twisted:

of course:)

 ;D



as with most hi gainers, its a balance between getting a good chunky riffing sound, with a good lead sound too...

which imo, a lot of them lack...but its a very tweakable circuit.... :icon_cool:

ok heres what i have now...i added a mid pot...

another clip but using drop C# tuning..with varying tone...

if anyone has any ideas on a better mid scoop tone, i'll try em.. ;).. (tip if breadboarding this, take out C1 to avoid oscillaion ok..it cuts it off totally.) just replace after.. :icon_wink:

http://dl.dropbox.com/u/7464107/BSIABX1.mp3

(http://dl.dropbox.com/u/7464107/BSIABXSCHEMO.jpg)

Nice rob its very heavy.. here's what im hearing.. too fizzy need some bass too"deep control" or just take off the tone stack and replace  with Bax control? Shove it shove it aaaaaaaaarrrrrrrrrrrrrrrrrrrrrrrh

baxandall eh?. as in straight tone stack calc version...?.....hmm might try it...

the gain and bite is definately better than the boogie,and no @#$%ing trim pots either :icon_rolleyes:... more tinkering.. ;)

the straight bax in te DCalculator works find . . . or maybe the Amz Presence control.. i remember installing it in a boogie and it's darn good, very responsive and can achieve those scoop mids. or just simple BMP sith switchable mids? hahahah i gonna breadboard this after my 2 projects :D

i'll use another breadboard to rig up a bax stack...and tinker with values then... i'm on it now!.. :icon_wink:

hmmmm...tried out the bax stack...quite disappointed really...the 1M bass only brings in a tiny bit of bass from 12 oclock...then a massive amount on the very last bit... :-\

not a smooth gradual bass transition at all.......thought it would be better than that..

also its made the distortion lose that thrashy edge too, it seems to have tamed it.. :-\....ill experiment further...@#$%ing tone stacks...  ::)

Quote1M bass only brings in a tiny bit of bass from 12 oclock...then a massive amount on the very last bit

Were you trying it with a log bass pot or a linear bass pot?  The bass pot in the (Duncan's) tonestack calculator is a "log B" pot.  In practice, I've seen the same issue you describe.  I always use a linear pot.

Check this tonestack out.  It has a big notch and controls the treble level.  Great "old" design by Doug Hammon from when I first started hanging out here.  ;)

http://www.aronnelson.com/gallery/main.php/v/WGTP/Sweet16.gif.html?g2_imageViewsIndex=1

mhhh so the bax doesnt do the trick? . .  in my bax i use linears both treble and bass... lets experiment more :D

(http://www.aronnelson.com/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=2465&g2_serialNumber=2)

this is very cool :D lets try this Rob

cheers guys:

yep i used linear for tones, log for volumes...

i'll try this out today...especially the 'phat' mod version....

i'll report back later!..thanks... ;)

"RTL" Rob Tone Lab  :D  :D


joking !! just because I need to stay updated on this

Ciao

 ;)

i'm just reposting current experiment clips in one place ok.. ::)

1st clip..as per original schemo..

http://dl.dropbox.com/u/7464107/bsiabx.mp3

2nd clip as per my redrawn added pot schemo...low c#

http://dl.dropbox.com/u/7464107/BSIABX1.mp3


edit:

ok tried the 16 tonestack....is it meant to be like this?... sounds terrible...::)

this is fully ccw then fully cw...its really loud in volume ccw...then goes really quiet fully cw...turned up the volume near the end..(i know it doesn't help with mass oscillation going on.. :icon_mrgreen:)

http://dl.dropbox.com/u/7464107/16tstack1.mp3

Quote from: deadastronaut on September 28, 2011, 07:13:16 AM
;)

i'm just reposting current experiment clips in one place ok.. ::)

1st clip..as per original schemo..

http://dl.dropbox.com/u/7464107/bsiabx.mp3

2nd clip as per my redrawn added pot schemo...low c#

http://dl.dropbox.com/u/7464107/BSIABX1.mp3


edit:

ok tried the 16 tonestack....is it meant to be like this?... sounds terrible...::)

this is fully ccw then fully cw...its really loud in volume ccw...then goes really quiet fully cw...turned up the volume near the end..(i know it doesn't help with mass oscillation going on.. :icon_mrgreen:)

http://dl.dropbox.com/u/7464107/16tstack1.mp3

MHHH it seems i kind'a like the first "original schemo" mmmhhh how about the marshall tone stack ? :D


P>S rob did you used linear on your Boogie tone stack? is it necessary LOG pot on the Bass tone stack?

ANOTHER PS http://sim.okawa-denshi.jp/en/TwinTCRkeisan.htm (http://sim.okawa-denshi.jp/en/TwinTCRkeisan.htm) this is cool! but i dont know how to use it HAHAHAH

The Sweet 16 tone stack control should just raise the treble up and down and have a fat resonant low mid tone.  Mess with some of the cap values if your sure you have it right.  ;)

@ask: re boogie: i can't remember!...probably lin going by the general use  of lin for tone  log for vol... :-\

@wgtp: i'll give it another go, and double check my values/arrangement etc...

Rb did check out the link? its pretty cool :D

i just tried the SWTC with various values...its ok, but not for my ears....

@ask : looks interesting...recommend any values for it to start with?..

What tone control works will very much depend on the amp/spkr. I tuned the ST for my dark SS amp and it gave it modern sound. Will probably sound too trebly with some amps.

For another good high gain pedal try Joe D's Blackfire Preamp. Simple circuit using common npn's and sounds fantastic-like an SLO to me.

cheers doug, yeah might try that..eventually.. :icon_cool:..

.i'm just after a good one pot tone that has a good range at 12o'clock  position..

and doesn't go tinny as hell when full, or massive changes in volume...i think its asking too much for a passive i guess..

i'll persevere... ;)

I noticed the tone stack on Mark Hammer's Chaos is similar to the one on the Russian BSIAB.  I haven't tried it but will soon.

http://hammer.ampage.org/files/Chaos.gif

@ rob here is the link for values http://sim.okawa-denshi.jp/en/TwinTCRtool.php (http://sim.okawa-denshi.jp/en/TwinTCRtool.php)  if you click on the "TOOLS" look for Twin t-notch or other filters for more infos.

Simple, Easy Parametric and Graphic EQ's, Plus Peaks and Notches

GEOFEX has a nice article about notch filters.  See above.

right i'm back on it, ive tried loads of tone controls now... ::)...

heres the 'chaos tone control on it...it starts at 12...then goes through the whole control, then back to 12 again...

http://dl.dropbox.com/u/7464107/chaosts1.mp3


:P

its ok but has lost that thrash in your face type feel as you play..... :icon_twisted:

Nice tone!!! Sound like The Pride Album of White Lion!! :D i like it :D

i added an extra cap to ground to it and will probably make it switchable, it just gives that tighter /more pantera/def tone riffin chug back....

so its normal/modern...bit of a volume jump, but i'll stick a resistor in there to match it if i can... :icon_twisted:

i'll sort it today hopefully...... :icon_rolleyes:

heres a bastardized version of the 'chaos' tone...it probably goes against all rules of electronics, :icon_redface: but it kicks ass in a detuned thrashy kind of way..

any suggestions/ improvements are welcome..its still a bit gritty i suspect the 470pf needs adjusting...but the gain is on full whack... :icon_twisted: ;)

heres the sound of it.. btw the pot is a 47k lin...not 100k. ::)

http://dl.dropbox.com/u/7464107/moddedchaostone.mp3

(http://dl.dropbox.com/u/7464107/metaltone.jpg)

Wow that was freaking heaaaaaaaavvvvvvvy :D i like it :D but theres something missing on the heaviness  mmmhhh sounded harsh to me  ..  :icon_question: LPF might help :icon_question:

Nice work.   :icon_twisted:

cheers guys, yeah its ok, i like that it doesn't get massively louder at either end like most tone controls do, , but it has taken the overall level down.....hmmmm...

more tinkering.... ::)

i took thwe 470pf down to 220p-330p, much less harsh....could be toggled....bla blah blah....we'll get there i'm sure!... :icon_twisted:

i have no 1000nf's to get deeper bass.....so i tried 2 parallel 470nf's but the theory of doubling the value didn't seem to have any effect...hnmmm....

i'm trying to get a good balance for standard tuning and drop c# too...a good all rounder if you like...   8)

To roll off some highs and reduce the harshness, try a cap to ground at the beginning of the tone control.  Start small and increase until you can hear it.  May reduce the oscillation as well.  You could also try one between the Mu-amps.  ;)

ok i'm back on it :)... i'll try those suggestions...cheers.

question:  this ts ^  cuts the volume below unity, but i like the fact that it doesn't get louder at each end of travel like others tend to,.... if i halve all the values will that bring the volume back up?....seems logical... ???

note:  ive been thinking of having 2 switchable tone controls for this...ive been getting a nice metal/blues feel on one tone...an a good chunk /crunch with the other^ ...just thinking aloud.. :icon_idea:

it would be nice to have a good all rounder, but i doubt its possible going by my experiments... :-\


EDIT:

i'll try halving values today see how it goes... :)

hmmmm...i'm still here ::).. tried the baxandall again, with varying values, but the sum of what i liked was very similar to a one knob version i did..

so i'm going back to that, with different values..

as you can hear on the clip (c#) there was no oscillation either..but under unity....its just trying to find that magic config of values etc....

or even whacking a buffer after the tone to bring it back up....hmmmmmmm.....

my cat is getting very pissed off with my thrashy antics.. :icon_twisted:...

oh i solved my oscillation problem by having one leg of a 4.7pf  in the ground on bread and the other in the air...much better..weird..but it worked..and doesn't affect the sound.


edit: its quite lonely on this forum trying out thrash/metal head stuff  :icon_evil:...i guess if i were building yet another fuzzy musey muffy it would be full of ideas!..but hey, thats demographics and taste for ya! ;)
nevermind, i'll crack on...i'll be over here in the outcast corner...  ::)

Tone controls is/are an area that is not widely understood.  It is very important to the overall "character" of the device.  Since Metal/Thrash require a notch in the response, I like the Bridged-T with 50k trim pots for the resistors.  My Epiphone Valve Jr. doesn't have tone controls and is fairly midey with the 12" speaker I use.  I can't hear the highs very well, so I don't roll them off.

Have you seen the Vox tone control on the Duncan Tone Stack Simulator?  Some like it for the deep notch that it can provide.  Also, the original BSIAB has a different tone stack than your using.  :)

edit: its quite lonely on this forum trying out thrash/metal head stuff  :icon_evil:...i guess if i were building yet another fuzzy musey muffy it would be full of ideas!..but hey, thats demographics and taste for ya! ;)
nevermind, i'll crack on...i'll be over here in the outcast corner...  ::)



[/quote]
Lol. Sorry dude. The support is there but I don't know how to help you. I'm just not good at building circuts. So far, it sound killer! :icon_twisted:

@ paully , no worries man...i was just having a moaning moment... :icon_mrgreen:;)

@wgtp: yep, eq is everything especially when it comes to thrashy /metaly stuff, and your right, i should have tried the bsiab tone (variations) first off..

i'm a dumbass... :-[

i have the tsc, i was messing with it last night, trying different values on screen and on breadboard to actually see/hear the effect of component changes....

its a pretty cool tool...ideally i want a one knob tone, but if it has to be 2 so be it...i'l take a go at the vox 1 too...cheers man, i appreciate the ideas.. ;)

btw whats the 'bridged 't' one?.. edit: i'm reading this...
http://www.diystompboxes.com/smfforum/index.php?topic=25788.msg172183#msg172183

Check out the Geofex article sited above for Bridged T etc. 

I had forgotten about STM's circuit.  He has done some nice work.  Check out his stuff here.  Nice simple midrange control.  ;)

http://www.aronnelson.com/gallery/main.php/v/STMs-Circuit-Ideas/

I have to say I am much more of a distortion man than fuzz.   :icon_twisted:

^  nice one WG, that stm stuff looks really good...i'm on it today...cheers man!.. :icon_cool:

clip later... ;)

yeah me too.... :icon_twisted: ;)

ok , i'm back with avengance...thanks to walt for sending me some 1uf's.(non polar)..cheers man your a star!.. :-*

i went back to basics with the original tone and tweaked some values...it has a nice blues to old school metal to hard rock feel now and cleans up nicely...

the clip starts with drive at 9,12,3,and full gain oclock...i really like the bluesy setting and the metal..its really getting there now...just need to tame the highest treble setting, but that shouldn't be a problem...

and a little more tweaking to get that full on thrash back, without losing the bluesy cleaned upness... ;)....arghhh can't wait to get the pcb done and boxed up..so i don't have to battle against oscillation...
my cat is sick of squeeeeeeeeeeelllllllllllll.... :icon_mrgreen:

remember this is without an amp...just into desk/hi fi... :)

http://dl.dropbox.com/u/7464107/bluesnmetal.mp3

opinions?..

edit:
(http://dl.dropbox.com/u/7464107/bluesmetalthrashtone.jpg)

this schemo  is after i did the clip the 470p tames the highs (and oscillation 8)) when the treble is full...
the tone is nice now at the 12 position...

i must stop talking to myself... ;) :icon_mrgreen:

It would be cool to get a sim of this to see what the EQ is doing.  ;)

i wouldn't know how to go about that?.. :-\...never used one...

heres what i have at the mo...

(http://dl.dropbox.com/u/7464107/bsiabxmetal.jpg)

I'm liking the sounds Rob, thanks for sharing this, It might be worth putting a low pass filter after the tone stack if you want to lose that very high top end you mention.

hi mick: no problem.. :)

simple resistor/cap to ground yeah?...what values would you suggest..for a LP filter.?...

Rob,

After posting your changes... then posting "what you have at the moment," I am having a hard time where and how exactly you placed this into the circuit.

Your "what I have at the moment" circuit shows the RC to ground BEFORE the 1uF cap.

Your original circuit shows it AFTER the 1uF cap (C3 on your drawing)  ???

correct:  :icon_redface:  well spotted, so it is after ok...i'll update it in a mo.... i wish i knew what i was doing... :icon_mrgreen:  thanks. ;)

ok its corrected now...plus the 470pf that i forgot.... ::)

all present and correct sir!... :icon_cool:

Quote from: deadastronaut on October 17, 2011, 12:39:53 PM
correct:  :icon_redface:  well spotted, so it is after ok...i'll update it in a mo.... i wish i knew what i was doing... :icon_mrgreen:  thanks. ;)

ok its corrected now...plus the 470pf that i forgot.... ::)

all present and correct sir!... :icon_cool:

Looks interesting Rob  :icon_cool:

Will there be a PCB layout soon to follow??

yeah sure, once i get it tweaked to where i'm happy enough.... i can't wait...but i'm holding back on my ready, fire, aim approach....

i have all the layout done, except for the tone ::)....to fit in a 1590b... :icon_cool:

Quote from: deadastronaut on October 17, 2011, 12:57:53 PM
yeah sure, once i get it tweaked to where i'm happy enough.... i can't wait...but i'm holding back on my ready, fire, aim approach....

i have all the layout done, except for the tone ::)....to fit in a 1590b... :icon_cool:

SCHWEEEEEEEEEEEEEETTTTTTT!!!  ;D

Stay tuned!  :icon_eek:

heres my box (undrilled) etched n ready to go for it... \m/   :icon_twisted:  \m/.... ;)
the led 'red eyes' will be sound to light...(on seperate tiny pcb/vero).coz i'm an led addict.......just in time for halloween..hopefully.. :o

(http://dl.dropbox.com/u/7464107/bsiabxbox1.jpg)

Quote from: deadastronaut on October 17, 2011, 02:27:24 PM
heres my box (undrilled) etched n ready to go for it... \m/   :icon_twisted:  \m/.... ;)
the led 'red eyes' will be sound to light...(on seperate tiny pcb/vero).coz i'm an led addict.......just in time for halloween..hopefully.. :o

(http://dl.dropbox.com/u/7464107/bsiabxbox1.jpg)

Fancy Rob!!  :o

No Contour mod?  :icon_lol:

ha ha..depends on the tone really...otherwise i may as well have used a beefed up baxandall.... ;)

Quote from: deadastronaut on October 17, 2011, 12:22:47 PM
hi mick: no problem.. :)

simple resistor/cap to ground yeah?...what values would you suggest..for a LP filter.?...

Yeah, as you say a simple resistor and cap to ground. The standard BSIAB uses a 10k/2n2 which would give a 7.2khz filter, this might just lose a little bit too much so I think I would start with a 7k2 resistor and a 2n2 cap that would give you about 10khz.

It might be a good idea to use a 10k or 20k pot and a 2n2 cap that way you could adjust the pot until it gives the results your looking for then replace the pot with the correct size resistor, or from that result work out the cutoff freq you need and adjust the resistor/cap values to match it.

^cool, good idea, i did whack both of those bsiab 10k's 22n's on there but it did cut off too much...

i'll give it a go with a simple rc...cheers mick... 8)

okey dokey...

i put that LP filter on 10k/2n2 and it sounds okay...ive been messing around with different RC'S,  but i thought i'd try a few different guitars with it as is...

i'll get my marshall back from my mates tonight and try that tomorrow...should be nice through an actual amp i think... :icon_twisted:

here ya go.. 8)

When you cascade the 2 - 10k/2n2 networks, the filter frequency drops by 65% and becomes 12 db/oct instead of the 6 db/oct of a single filter.  You can vary the values and get different slopes.  Or, when you get older, you won't need them because you can't hear the highs anyway.  ;)

what!... :icon_mrgreen:

hmmm i see....i'm still tweaking, can't wait to get my amp back n try it out.... :icon_cool:

Pre-build question...

I've listen to the sound clips on at one end it's more bluesy (I like) and at the other end it's more.......melt your face!

I'm looking for the more bluesy sound.....id the original BSIAB 2 better ? (for that kinda sound I mean)

Wow, it looks strange watching someone play a right handed guitar strung the same as a right handed guitar with the low E string on the bottom, ie not restrung for left handed but playing.
Or is the guitar the right way up and your standing on your head. I am also left handed but play a standard right handed guitar.

I like the sound with the added 10k/2n2 LF on the output.

edit - on watching the rest of the vid, it is indeed restrung ala Hendrix. My bad.

Quote from: Ice-9 on October 19, 2011, 04:38:28 PM
Or is the guitar the right way up and your standing on your head.

I think Rob is always standing on his head. :icon_mrgreen:

@alain:  yep go for the standard bsiab...i built it but it had tone issues that i didn't like...it was too dark for me and didn't sound like most demo's i'd heard, i would recommend that you breadboard it
and see what changes to make for 'your ears/style.. ;)..........or build this and  turn the gain down.. ;)

@mick, no bad!... its not re-strung, its a right hander upside down...i have it laying around for when those awkward right handers come round to jam...(hendrix restrung his though).. ;)
i had to do that when i first started playing, i had a right handed fender copy, but ive got used to playing upside down through playing (messing around ) on friends righties....

@maik: yep i am upside down.....my brain is usually anyway........... :icon_mrgreen:

okay i got my amp back today whooohoooo :icon_twisted:......i took an emulated line out of my marshall avt 275 into a mixer.....

it has 2 distortion channels, 2 clean channels...i used 1 distorted channel and one clean channel....both channel EQ'S set exactly the same...
i used a clean channel for 'the breadboard distortion, and a distortion channel for another clip...guess which is which?... ;)

http://dl.dropbox.com/u/7464107/amptest1.mp3

OK Rob, let´s try it...
Hmm, 50% chance....   ???

First amp second stompbox. If not than first box than amp    :icon_mrgreen:

Realy, if the box is first-I want one!!!

well your out of luck then...the bread was second... ::) :icon_mrgreen:

i like the tighter/more defined sound...it has the same gain as the marshall...and live (in my ears in a front room) it sounds pretty thick n chuggy...the cab giving it more bass i guess...(which i'm allowing for, taking muddiness into account)

hmmmm not bad...were getting there..... ;)


edit: hmmmm it did cross my mind to have 2 x 1 pot tone controls...switchable, for different styles.....hmmmmmm....

the earlier ones i tried out were a bit more 'open' ..hmmmm....i'll have a beer and ponder on that...i'll try it later....sip sip sip swig....... :P

Heard it again and again - ok, I take one!   :icon_mrgreen:
The FX is a little bit too compressed and boxed (you know what I mean?). It could be more open, just a little bit. More amp than box...
Anyway, sounds cool.

yeah know what you mean,..............ok that'll be $479,000  :icon_mrgreen:

now ive got my amp back, i can try all sorts of 'real life' config's................the quest continues....... ;)

been messing around with 2 tones...one tight (modern) and one standard 'open' sounding(old school)...hmmm its quite good, its great having a switch there to instanly hear the difference, without moving wires etc...
both on together sounds quite good too...thick n punchy..

now if i cold get both sound types from 1 pot i'd be a happy bunny.... ;D


(http://dl.dropbox.com/u/7464107/bsiabx2tones.jpg)

DOUBLE POT, BUNNY?  :icon_mrgreen:

Remember the big bastard? Would perhaps also nice with this 2 tone...

yeah probably be ok with that...

i was just altering the 'modern' tone again..got a lovely gilmourish solo sound, very open with that woody undertone to it...i'll make a note of it...(one for the future..)

i swapped the 100n for a 22n...and the 100r for a 5.6k.....arghhhhhhh too many choices...ha ha...

i'll probably end up with a 12 way rotary .... :icon_mrgreen:

 :icon_idea:   perhaps a good idea the 12er    :icon_idea:

^ ha ha, sod that....might be an idea for another project though!.. ;)

anyway, i'm back to one pot ..yay!..., switching from the 100n/100r(maybe 470p) - 22n 10k(maybe 5.6k)....just need to sort out the volume differences...hmmmm....sounding good though!...

flipping between modern/old school-ish.....the old school with gain backed off is really cool for bluesy stuff...so its like 3 pedals in one really...great!.. :icon_twisted:

update soon:.

Sounds like you're getting close to what you want.  ...can't wait to see the final schematic.

@walt: yeah i'm getting there, i can't wait to see it too....  ;D... heres what i have at the moment on breadboard..
theres a big volume difference in tone selections modern is low old is high , i'll have to sort that, i'll try with a trim etc...unless anyone has any other ideas...?

(http://dl.dropbox.com/u/7464107/modernold.jpg)

Good work.  I haven't ever tried my own tone control design before.  ;)

Quote from: WGTP on October 25, 2011, 05:56:41 PM
Good work.  I haven't ever tried my own tone control design before.  ;)

you fibber.... :D ;)

i was messing around with a layout and i thought i'd do a 'no tone stack version' layout and pcb...just add your own stack! ---  a distortion module if you like..:icon_cool:
ive checked it and it all looks ok... :)

http://dl.dropbox.com/u/7464107/bsiabxnotone.pdf

http://dl.dropbox.com/u/7464107/bsiabxnotonePCB.pdf

my tonestack version soon-ish... ;)

i'm having a halloween party sat, so i'm trying to cram stuff in.....massive hangover on sunday no doubt.. :P

Hi,
any news on this? Hangover over now?  :icon_mrgreen:

yeah all better now!....

i'm testing with my amp as i type right now......sound clip in a while ok... ;)
..sounds cool....

1 tone, 2 settings....tight and open...keeping it simple..like me.... ;)

ok this clip doesn't really do it justice  its thrugh the emulated out of my marshall avt275 clean channel.

..ive got my ears around those high ends and gone for a more chunky feel...losing the fizz... :)

the first is the open sound...second is the  tight second clip .its got a nice palmy feel...

i go through the tone control on both too...as i say it doesn't do it justice really compared to what i hear in my room...excuses excuses... ;)

http://dl.dropbox.com/u/7464107/test%20of%20the%20brown%20son%20of%20a%20bitch.mp3

ok heres a mic'd clip....crappy mic though... ::)

if i lift the c1   1uf  from ground it gives a much cleaner chunk, but less sustain...but is a good feature too....hmmmm

this is with the c1 lifted off ground...it cleans up better too...

http://dl.dropbox.com/u/7464107/bsoab2.mp3

Whow!
Can´t load the first one (error 500) but the second one is cool. From metal to blues. Chunky!
As I said before - want one!
PCB?  :icon_mrgreen:

That sounds great Rob, I'm not normally a fan of high gain stuff but I might give this one a go.

Rob, sounds great (2nd clip).

cheers guys...yeah its much better now i got rid of the fizziness....its strange how one day it sounds ok, then the next its not quite what you remembered it as..

maybe i need my ears syringing or something.......anyway..

yeah second clip is much better, thats with taking the 1uf cap off the 1st muamp source...really cleans it up...and drops any oscillation too..(toggle? hmmmm)

with the cap it sustains a lot better though......but when in a live loud situation i think it'll be more than ample....its always different loud eh...

anyhow, i'll work on a pcb layout.... ;)

Awesome! I've been watching this thread with great interest.
Can't wait for the layout ;D

right get your flares and afro on......a bit more tinkering and found a great funky mod ......

by lifting the 1nf from between the first 2 fets i get this...it makes such a difference..(i tried various caps, but none was best..great.)...

start of clip with 1nf to ground...then lifted.(at 0:20)...check this funky mother out, sounds like that classic bright fender almost hendrixy/amp...and bluesy too...
no amp...and not a fender... ;)

http://dl.dropbox.com/u/7464107/funkycapmod.mp3

i @#$%ing love it...a great addition ...man, this will be a beast of many faces when its done.... :icon_twisted:
ive been pissing off my neighbours all night with this..... :icon_twisted:

modern/classic/funk/blues all in one......pukka!... :icon_cool:

i have a strange fuzz mod too...i'm not a big fan of fuzz, but i know the majority of people are....
so i thought well why not as an additional option..

it sounds a bit like old steve hillage fuzz type stuff....(re:aftaglid)..which i was somewhat influenced by in my heady hawkwind days , festvals etc....being a teenage stoner etc... ;)

heres a clip of the 'hillage' fuzz mod...in case anyones interested..... ::)

http://dl.dropbox.com/u/7464107/hillagefuzz1.mp3

so now it'll be...modern metal/classic metal/ funk/blues/fuzz.

i'll build this prototype into a 1590b for now (when i get the pcb finished) , but in the near future i can see this ending up in a 1590bb with a full BMT stack and maybe a 6 way rotary
and 2 footswitches...a full on all in one dirt box if you like......btw this sounds great with a wah too... ;)

anyway...whatever!...

Hey Rob, great man!
Got my decal ready for a 1590b with 2 mod-switches. So, do it man  :icon_mrgreen:

you may have to make that 3 toggles.. ;)

i'm going through some final tests, and checking over the pcb layout, then all shall be revealed!.. ;D

Hey Rob, like this?  :icon_mrgreen:

http://img339.imageshack.us/img339/2116/sonofabitch3.png

ha ha....is that your kid?... :D

i'm still thinking of a name for it.... ;)

(http://dl.dropbox.com/u/7464107/blankbox.jpg)

No kids at all!  :icon_mrgreen: :icon_mrgreen:

It´s the name from the first sample you post (brown son of the bitch)  :icon_mrgreen:

ha ha...me neither... :icon_cool:

yeah i remember now... :)

ive made 3 different layouts, i'm just tweaking the best one....nearly done!...

hopefully i'll get it printed/cut/etched/drilled today... ::)

introducing the 'SPITFIRE' metal 'n' blues pedal....
(unverified)

http://dl.dropbox.com/u/7464107/SPITFIRE%20LAYOUT.pdf

http://dl.dropbox.com/u/7464107/SPITFIRE%20PCB.pdf

enjoy.....\m/    :icon_twisted:   \m/

i'll put this in a new 'SPITFIRE' thread for those that think its just another bsiab (brown son of a bitch)...

thanks to those that have helped and put up with my ignorance...thanks guys you know who you are... ;) :-*

new thread..
http://www.diystompboxes.com/smfforum/index.php?topic=94608.new#new


right i'm off to  mess with some pt2399's.... ;)