madbeanpedals::forum

Projects => Build Reports => Topic started by: Bio77 on August 15, 2019, 01:50:12 AM

Title: Black Horse – Duplex Drive
Post by: Bio77 on August 15, 2019, 01:50:12 AM
Here is a Black Horse Duplex Drive.  It's a Cornish SS2 G2 clone.  I'm not a muff fan, so, probably not the best judge to weigh in.  I do prefer this (G2 side) to other muffs I have palyed.

(https://imagizer.imageshack.com/img923/6988/fQyCYa.jpg)

(https://imagizer.imageshack.com/img922/2005/0Xpmuk.jpg)

Here are the 1N5401 diodes I ordered from Mouser, made me laugh when I took them out of the foil.   

(https://imagizer.imageshack.com/img921/1169/BYm04l.jpg)
Title: Re: Black Horse – Duplex Drive
Post by: benny_profane on August 15, 2019, 02:31:50 AM
Looking good! Your graphics are turning out great!

I haven't tried the SS-2, but I dig the G-2. Did you keep the stock values or play around to brighten up the G-2?

And those diodes are pretty large. Those leads look to be about as thick as a 1n914!
Title: Re: Black Horse – Duplex Drive
Post by: somnif on August 15, 2019, 09:36:20 AM
That is one beefy polarity protection diode. Makes me wonder if it was just a case of Pete Cornish only having some amplifier or PSU circuit diodes around when he was designing the pedal and sticking with it (seriously, why else run a 3A 100V diode in a stompbox...)
Title: Re: Black Horse – Duplex Drive
Post by: jimilee on August 15, 2019, 11:41:47 AM
Those Cornish pedals are quite possibly my favorite.


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Title: Re: Black Horse – Duplex Drive
Post by: Bio77 on August 15, 2019, 04:38:54 PM
Quote from: benny_profane on August 15, 2019, 02:31:50 AM
Looking good! Your graphics are turning out great!

I haven't tried the SS-2, but I dig the G-2. Did you keep the stock values or play around to brighten up the G-2?

And those diodes are pretty large. Those leads look to be about as thick as a 1n914!

Thanks!  I haven't tried any mods, is there a thread somewhere you could point me to?

Quote from: DFX on August 15, 2019, 08:44:16 AM
nice work. Have you changed the stock 2.2uf film caps for lower values in the G2?

I haven't looked into the mods, yet but will probably start.  I actually like the harmonics coming out of the G2 side compared to other muffs I've built/played.  Those have mostly been russian spec muffs.

Quote from: somnif on August 15, 2019, 09:36:20 AM

Oh, I thought I made a mistake and got the wrong size.  Didn't realize those were actually used in the original, that is weird. 
That is one beefy polarity protection diode. Makes me wonder if it was just a case of Pete Cornish only having some amplifier or PSU circuit diodes around when he was designing the pedal and sticking with it (seriously, why else run a 3A 100V diode in a stompbox...)
Title: Re: Black Horse – Duplex Drive
Post by: benny_profane on August 15, 2019, 05:52:20 PM
Here are a few threads with some suggestions:

http://www.madbeanpedals.com/forum/index.php?topic=355.msg5329#msg5329 (http://www.madbeanpedals.com/forum/index.php?topic=355.msg5329#msg5329)
http://www.madbeanpedals.com/forum/index.php?topic=29631.msg286915#msg286915 (http://www.madbeanpedals.com/forum/index.php?topic=29631.msg286915#msg286915)
http://www.madbeanpedals.com/forum/index.php?topic=24354.msg237590#msg237590 (http://www.madbeanpedals.com/forum/index.php?topic=24354.msg237590#msg237590)

This site has another rundown of mods:
https://dantonewac.blogspot.com/2018/02/cornish-ss-2-and-g-2-diy-pedal-builds.html (https://dantonewac.blogspot.com/2018/02/cornish-ss-2-and-g-2-diy-pedal-builds.html)

Aion's Project page for the Cygnus has a pretty thorough rundown as well.
Title: Re: Black Horse – Duplex Drive
Post by: Bio77 on August 16, 2019, 12:12:10 AM
Thanks BP!  I'll check it out.