Goodrich Stereo Volume Pedal

[CJ]

customer dropped this off as a gift, needs a little tlc,

Goodrich Sound PH-2

which is a pretty rare version (not many hits) of their normal stereo pedal,

this one has two channels in and two channels out, can be used with one in and two out with jack switching,

does volume swells, do not know how that is done , probably uses the off delay of the couplers,

anybody have a schematic?

that is alright, we will trace it out shortly,


that is a 500 k trim pot at the top>

 

[CJ]

correction, if you remove the velcro (i'm an idiot) it says L10/2 as the model #

 

[CJ]

had to lift the opto to get a p/n 3 legs on the business side,

VTL5C3/2

resurrected by Xvive>

https://www.amplifiedparts.com/products/optocoupler-xvive-vactrol-vtl5c-series



https://www.alliedelec.com/m/d/ecb1ed91959ae54d97cf67f5103d9b2b.pdf

 

[Gus]

Found this
https://bb.steelguitarforum.com/viewtopic.php?t=297438&sid=a9b4ea919cbe55ede70c2b8e5dab4787
patent search did not find anything with Goodrich but I found this

https://patents.google.com/patent/US3102227A/en?oq=3,102,227
Click on similar

 

[CJ]

Thanks Gus! They have an opto card shuffler in that patent link,

I got the schemo traced out. It ain,t that complicated

 

[CJ]

schemo>