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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  New at runoffgroove.com: Ginger 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: New at runoffgroove.com: Ginger  (Read 7496 times)
chi_boy
Posts: 565


George


Re: New at runoffgroove.com: Ginger
« Reply #20 on: December 01, 2011, 08:02:09 PM »

I don't see the 6k8 from Gain to GND.  Am I missing it?
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"Great minds discuss ideas, average minds discuss events, small minds discuss people." Admiral Hyman G. Rickover - 1900-1986

The Leftover PCB Page
frequencycentral
Posts: 4890


Kicking the sh!t of of your speakers since 2008


WWW
Re: New at runoffgroove.com: Ginger
« Reply #21 on: December 02, 2011, 01:25:44 AM »

I don't see the 6k8 from Gain to GND.  Am I missing it?

Good catch, it's missing. I'll add it later. Anything else?
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B Tremblay
Posts: 1545

runoffgroove.com


WWW
Re: New at runoffgroove.com: Ginger
« Reply #22 on: December 02, 2011, 07:25:40 AM »

I don't see the 6k8 from Gain to GND.  Am I missing it?

Good catch, it's missing. I'll add it later. Anything else?

I checked it over and didn't find anything else.  Very nice quick work!
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B Tremblay
runoffgroove.com
DavenPaget
Posts: 1400


Dave.S / Dave Seether


Re: New at runoffgroove.com: Ginger
« Reply #23 on: December 02, 2011, 07:49:08 AM »

Tremblay , where's the listing on ROG for the UBE Screamer ?  icon_cry
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Hiatus
B Tremblay
Posts: 1545

runoffgroove.com


WWW
Re: New at runoffgroove.com: Ginger
« Reply #24 on: December 02, 2011, 11:38:57 AM »

Tremblay , where's the listing on ROG for the UBE Screamer ?  icon_cry

http://runoffgroove.com/ubescreamer.html

It was never properly linked or released, despite some further revisions following the contest.  Thanks for reminding us!
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B Tremblay
runoffgroove.com
DavenPaget
Posts: 1400


Dave.S / Dave Seether


Re: New at runoffgroove.com: Ginger
« Reply #25 on: December 02, 2011, 11:46:46 AM »

Thanks !  Grin
I always loved the UBE screamer but i would lose the link all the time ... it doesn't even show up on google even ...
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Hiatus
frequencycentral
Posts: 4890


Kicking the sh!t of of your speakers since 2008


WWW
Re: New at runoffgroove.com: Ginger
« Reply #26 on: December 02, 2011, 12:17:05 PM »

I don't see the 6k8 from Gain to GND.  Am I missing it?

Good catch, it's missing. I'll add it later. Anything else?

I checked it over and didn't find anything else.  Very nice quick work!

Thanks! 6.8k now added (R20 on my layout), some stuff moved about to accomodate it. Should be all good now.
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whitedk57
Posts: 2


Re: New at runoffgroove.com: Ginger
« Reply #27 on: December 02, 2011, 03:57:01 PM »

What's the chance that you could add a true bypass (maybe a 3P2T) section on that layout. I'm new to this board, but I have done similar projects in the past.
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azrael
Posts: 728



Re: New at runoffgroove.com: Ginger
« Reply #28 on: December 03, 2011, 09:12:31 AM »

You can find bypass diagrams on generalguitargadgets.com
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chi_boy
Posts: 565


George


Re: New at runoffgroove.com: Ginger
« Reply #29 on: December 03, 2011, 09:30:06 AM »

Or Tonepad.  Look at #5

http://www.tonepad.com/getFile.asp?id=76
« Last Edit: December 03, 2011, 09:31:37 AM by chi_boy » Logged

"Great minds discuss ideas, average minds discuss events, small minds discuss people." Admiral Hyman G. Rickover - 1900-1986

The Leftover PCB Page
FisTheGoon
Posts: 106


Re: New at runoffgroove.com: Ginger
« Reply #30 on: December 04, 2011, 04:39:08 AM »

 Shocked nice sound you got there.love it.will try to make 1.   Grin
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whitedk57
Posts: 2


Re: New at runoffgroove.com: Ginger
« Reply #31 on: December 08, 2011, 10:40:59 AM »





I thought I would copy the OP's design and add a true-bypass switch to it. I got the design for the bypass switch from http://www.generalguitargadgets.com/diagrams/switch_lo_3pdt_ig_dcjack.gif?phpMyAdmin=78482479fd7e7fc3768044a841b3e85a.

I wonder if you guys can look this over and let me know if I have made a mistake or not...

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WGTP
Posts: 2458


Re: New at runoffgroove.com: Ginger
« Reply #32 on: January 18, 2012, 12:06:15 AM »

Wondering about the LED's.  Many Jfet designs, for example the amp sims, use the Jfets for distortion.  In this design, it appears that the LED/Diode distortion is preferred over the Jfet distortion?  I thought the point of using Jfets was that they had "better" clipping characteristics than clipping diodes??? 

Should this be seen as a way to add additional clipping stages to Jfet/Mosfet designs?  What's Up?  Wink
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Stomping Out Sparks & Flames
frequencycentral
Posts: 4890


Kicking the sh!t of of your speakers since 2008


WWW
Re: New at runoffgroove.com: Ginger
« Reply #33 on: February 08, 2012, 12:39:48 PM »

My layout if now verified, a friend of mine just built it.
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Colonel Angus
Posts: 305


Brian M. - Cincinnasty, OH


WWW
Pretty Freaking Cool!
« Reply #34 on: February 19, 2012, 01:39:42 PM »

Just finalized my perfboard version, waiting on my drill press to come and this sucker will be done! Sounds great, I tested it on an SVT with Jazz Bass and the tone is super creamy. I can definitely see what the benefit of using the LEDs is, the clipping is really soft sounding but with a lot of growl. I love it!

This is my first legit build, I did a real simple GE fuzz circuit to get my feet wet which turned out pretty cool, but this thing is badass! Finished right on time too, we are just about to start bass overdubs for the new Hiders record and this will be just the thing for some of those tracks, i'm sure. I'm definitely hooked and looking forward to my next build, maybe a Kay Fuzz-Clone or trem-something.

Does anyone think it would be worth the time to socket the caps on the tonestack to tweak out values/materials?

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Why should you not have 90o angles? Do the electrons bunch up in the corners?
Benjamin AM
Posts: 2


Re: New at runoffgroove.com: Ginger
« Reply #35 on: March 20, 2012, 11:39:11 AM »

Hello, I'm new to this forum as well as new to mu-amps. I was curious how to increase the gain of this circuit to get more distortion from my pedal. It would be nice to have about twice the amount of gain.
Thanks
-Benjamin 
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Colonel Angus
Posts: 305


Brian M. - Cincinnasty, OH


WWW
Re: New at runoffgroove.com: Ginger
« Reply #36 on: March 20, 2012, 12:03:54 PM »

I don't know if this is necessarily a good idea, but I flipped the last tranny - the 2n5088 - upside down and it about doubled the gain. Anyways, that's my noob advice...
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Why should you not have 90o angles? Do the electrons bunch up in the corners?
cultrvultr
Posts: 3


Re: New at runoffgroove.com: Ginger
« Reply #37 on: March 25, 2012, 02:06:49 AM »

I'm in the middle of putting this pedal together. I made a rookie mistake and put the schottky diodes in the same direction instead of asymmetrical.  I've tried removing one of them to flip it, but it's soldered in there really well. Will the pedal still work with this diode as-is?

I'm not really clear on what that pair of diodes is doing in this circuit. Is it clipping in addition to the red LEDs? If so, the circuit should still work, but with less clipping, right?

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kurtlives
Posts: 1995


Chris M.


WWW
Re: New at runoffgroove.com: Ginger
« Reply #38 on: March 25, 2012, 12:30:14 PM »

I'm in the middle of putting this pedal together. I made a rookie mistake and put the schottky diodes in the same direction instead of asymmetrical.  I've tried removing one of them to flip it, but it's soldered in there really well. Will the pedal still work with this diode as-is?

I'm not really clear on what that pair of diodes is doing in this circuit. Is it clipping in addition to the red LEDs? If so, the circuit should still work, but with less clipping, right?
Correct
Removing a pair will create less clipping.

The LEDs on the front I wouldn't think would be clipping your signal much though.
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bluebunny
Posts: 1498


Marc B.


WWW
Re: New at runoffgroove.com: Ginger
« Reply #39 on: March 25, 2012, 12:55:44 PM »

FYI, according to ROG:

"each stage has a pair of clipping diodes at the gate to avoid hard clipping in the JFET stages"
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Ohm's Law - much like Coles Law, but with less cabbage...
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