Black Horse – Duplex Drive

[Bio77]

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.





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

[benny_profane]

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!

[somnif]

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...)

[jimilee]

Those Cornish pedals are quite possibly my favorite.


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[Bio77]

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?

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.

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...)

[benny_profane]

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=29631.msg286915#msg286915
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

Aion’s Project page for the Cygnus has a pretty thorough rundown as well.

[Bio77]

Thanks BP!  I'll check it out.