Finally after a long long time i've got the Dr.boogie Working! my first project is almost complete because i have this huge problem...
It Doesn't sound like a distortion it sounds more like sweet nice overdrive. so... what's the problem?
(anyway im going to replace the pots because i think some of the aren't working right and the trimmers)
http://www.youtube.com/watch?v=jG1UsXuVqY4&feature=plcp
yeah thats not right...it should be kicking high gain chunky metal mutha ass.. :icon_twisted:
http://www.youtube.com/watch?v=f4M0_rrtse0&feature=plcp
did you set your trims to be 4.5-5v?...ish
did you use j201's?....which circuit/layout did you use?..
i get mine in the 4.5-5v ballpark....but saying that i end up ''biasing'' by ear..
I set them all to 5.4-5.3 and then by ear but it doen't get any heavier :(
http://gaussmarkov.net/layouts/drboo/drboo-project.pdf this is the circuit
and i am using the J201 transistors.
maybe if i change the trimmers it will change?
i would check your gain pot....turn your guitar right up....and the gain pot...and tweak those trimmers again
if your (100k) trimmers are adjusting the voltages, they should be ok....
Where did u get the j201's from? I've recentley build a boogie with j201's from tayda, it sounded nothing like my other boogies, also mild overdrive and no sustain what so ever.
Nothing bad to say about tayda btw, they maybe just got hold of a bad batch
I got my j201 from ebay and if changing the trimmers and pots won't work i'll change the transistors too but what is a good place to buy them?
They don't sell it anywhere in Israel so i have to buy it from the internet.
Well if they look like these: http://www.diystompboxes.com/smfforum/index.php?topic=97600.0 (http://www.diystompboxes.com/smfforum/index.php?topic=97600.0) and they are from Ebay from one of the Chinese suppliers, that could be part of the problem
(or the whole problem)
Wow man thanks they look just like the ones on the left... damn Chinese.
So where can i get the good ones for a fair price?
this guy here seems alright ;)
http://diystompboxes.com/zencart/index.php?main_page=product_info&cPath=12&products_id=2 (http://diystompboxes.com/zencart/index.php?main_page=product_info&cPath=12&products_id=2)
seriously, they are legit.
i bought some of those chinese ones and made a boogie. worked. though the gain was shrill and very saturated, not nice. so they weren't usable. opposite problem to what's going on here though it seems? made boogies before with normal j201 and no problem though.
dr boogey doesn't sound like a Mesa boogie anyway, a good distortion stompbox at best ! having both dr boogey and rectifier ! :icon_frown:
Can I Trust in http://www.futurlec.com? because they are kinda cheap
and if not, so from here http://www.pedalpartsplus.com/ or https://www.smallbearelec.com/home.html?
trust no one.
smallbear get props around here and i've read good reports of the others but have no personal experience of any.
trust in yourself.
*useless post #3567*
I Guess the question is ...
where do they send it faster?
which begs the questions... where are you? where are they? what are their delivery options? what is the postal service like? is it raining? how high is the moon? should i get a hair cut next tuesday? what's for dinner? are we nearly there yet? do they have any info on their website? do you like orange? i like orange. its a nice colour. i like purple too. what was the question?
:P
Quote from: PetMan on July 24, 2012, 04:20:05 AM
dr boogey doesn't sound like a Mesa boogie anyway, a good distortion stompbox at best ! having both dr boogey and rectifier ! :icon_frown:
I've got a dual and the Boogeys I've built all nail the tone. Every amp, even within the same model, is going to sound a little different due to component tolerances. And every pedal is going to sound a little different. But my Boogeys have all got the same kind of distortion as the real thing and you probably couldn't tell the difference in a full band setting.
^ cheaper too... :)
I bought J201's from mammoth they sounded great..same day shipping..quick delivery..good prices..china=headaches
By the way i wanna add a DPDT switch to make a bypass but i want it to stop the battery when its not used so how do i wire it?
i though of something like that:
(http://imagenesss.com/images/wallpapers/dpdt.jpeg)
jumper from F to E
In Jack to D
Out Jack to C
Effect In to B
Effect Out to A
will it work? and will it kill the battery when the effect is in bypass mod?
*ahem*. let me be the first since nobody jumped in.
disconnecting the battery will be a bad idea because it means you'll need to reconnect it when the effect is engaged. that will be noisy.
but then i will have to change battery every week, and if i just do what i suggested will it be okay?
from your diagram it looks like it WILL work to bypass the effect. however, the switch isn't carrying ground or V+ so i can't see it disconnecting the battery.
usually people use a foot switch too of course (:
there's a bypass write up here, but it looks like you've got the grips of it already:
http://www.dazatronyx.com/tech/what-is-true-bypass/ (http://www.dazatronyx.com/tech/what-is-true-bypass/)
disconnecting the battery on bypass will make a massive loud pop when you engage it again.
have you used the trick with a stereo input jack to disconnect the battery when there's no guitar plugged into the input?
luckily though, the boogie circuit should draw bugger all current, so a battery should go for ages while it's in bypass. some discrete FETs should draw more than opamps etc.
the biggest current draw will probably be from an LED being on if you are using one (use some simple ohms law to calculate that).
beyond that, if you really insist on using a battery then i guess get some rechargeable but a powder supply would be more friendly on the environment.
So how can i do the trick with the stereo jack?
and how can i add a Power supply that isn't the battery? what parts do i need?
the stereo input jack is simple. it will disconnect the pedal power when it's not in use. most companies do this.
you've noticed that the power negative (-) is also hooked to the casing of the enclosure and also to the earth on the input and output. when you put your mono guitar lead in the stereo jack the ring and sleeve connections get shorted out and this can be used as a switch to turn the effect on.
if you'd like to give it an allocation for a 9VDC input then you can use a 2.1mm socket which will be the same as most other companies (boss, ibanez, whatever).
to give you an idea what i mean, check out any one of the generalguitargadget.com layouts, like the BSIAB2 one here:
http://www.generalguitargadgets.com/pdf/ggg_bsiab2_lo.pdf?phpMyAdmin=78482479fd7e7fc3768044a841b3e85a (http://www.generalguitargadgets.com/pdf/ggg_bsiab2_lo.pdf?phpMyAdmin=78482479fd7e7fc3768044a841b3e85a)
diagrams are always more helpful (: plus this saves you checking how those DC sockets hookup with which pins...