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Gearmanndude Luther Drive

Posted: 12 Oct 2011, 13:40
by geiristudio
Okay I've gotten so much info here as well as layouts and whatnot. This website is the reason I've been able to build pedals. I'm a total beginner but I'm learning very fast and I've already made a few pedals with success. I just wanted to give you guys something in return and I hope this will evolve into a thread with schematics, layouts and whatever people need.

So here are a few pictures of the insides of my GMD Luther Drive. I'm not sure if it's the current version (if he's ever altered them) but it's a few years old.

Let me know if you need any additional photos, info or whatever.

Re: Gearmanndude Luther Drive

Posted: 12 Oct 2011, 13:58
by ~arph
Good start!

Now, we need the other side of the board and the values of the pots.
EDIT: But it's a TS of course :roll:

Re: Gearmanndude Luther Drive

Posted: 12 Oct 2011, 14:36
by culturejam
I'm 99% sure that GMD got his boards from BYOC (the old version of their 808 clone board). I think he made some kind of deal because they are screened with his name (or at least got some blank ones with no name), but the layout and traces are identical to the BYOC.

So yes, it's an old-school 808 (with buffers).

Re: Gearmanndude Luther Drive

Posted: 12 Oct 2011, 22:07
by 22uf
culturejam wrote:I'm 99% sure that GMD got his boards from BYOC (the old version of their 808 clone board). I think he made some kind of deal because they are screened with his name (or at least got some blank ones with no name), but the layout and traces are identical to the BYOC.

So yes, it's an old-school 808 (with buffers).

You are correct - he had Keith do the layout and handle the ordering of his boards.

Re: Gearmanndude Luther Drive

Posted: 13 Oct 2011, 03:29
by nzCdog
Sounds best with white coily cable ;)

Re: Gearmanndude Luther Drive

Posted: 13 Oct 2011, 03:35
by culturejam
nzCdog wrote:Sounds best with white coily cable ;)
"Today we got here the Luther Drive. It's got three knobbies on it. I don't know what the hell they do, but I'll make a demo anyway." :lol:

Re: Gearmanndude Luther Drive

Posted: 13 Oct 2011, 06:50
by ballfire
yeah haha..that guys voice is really funny...you know what im curious also with that luther drive he is using to his demos.

coily cable..hahaha...i remeber that that common words always he is using.. damn youtube..

Re: Gearmanndude Luther Drive

Posted: 13 Oct 2011, 12:49
by Ghandi
that thing, to me looks and sounds like a modded maxon ts-808

and that's based on the SRV Special by JC Maillet:
http://www.lynx.bc.ca/~jc/pedalsSRVspecial.html

Basically a Tubescreamer with less coupling caps (more clarity) and more gain 2m pot.


Some of my fav mods for a Tubescreamer are btw:

a bigger input cap (47nF-82nF)

and

a different frequency response for the high end roll off just before the tone control,
which is just a boosting back the highs at 723.8Hz, so you get a flat high end response when the tone control is maxed.

change the 220nF cap that goes to ground before the second half of the op-amp to 15nF or even 10nF
and you get a good bit more mid clarity and punch, because you have a little mid spike at around 880Hz.

Tweak on!

Ghandi

Re: Gearmanndude Luther Drive

Posted: 19 Oct 2011, 02:55
by distortion_gfx1
the guy just sounded like JB! Damn, that snake skin boots! :horsey:

Re: Gearmanndude Luther Drive

Posted: 19 Oct 2011, 20:30
by Seiche
is the video for the current special run of Luther Drives. I fully expect many thank yous :mrgreen:

Re: Gearmanndude Luther Drive

Posted: 19 Oct 2011, 20:51
by culturejam
I was expecting tits dipped in paint and then pressed on the enclosure. I am less than impressed.

Re: Gearmanndude Luther Drive

Posted: 19 Oct 2011, 20:57
by roseblood11
gearmanndude has tits?!? :shock:

Re: Gearmanndude Luther Drive

Posted: 19 Oct 2011, 21:25
by coldcraft
roseblood11 wrote:gearmanndude has tits?!? :shock:
no, you're confusing him with Bob.

Re: Gearmanndude Luther Drive

Posted: 19 Oct 2011, 21:43
by Seiche
culturejam wrote:I was expecting tits dipped in paint and then pressed on the enclosure. I am less than impressed.
:cry:

Re: Gearmanndude Luther Drive

Posted: 21 Oct 2011, 22:46
by Beerz
Vol = 100kb
Tone = 25kb
Drive = 500ka