EH black finger (original) Cloning, contradictory schematics, Which one?

[nelson]

Hi, my name is Paul Nelson and I am an Electro Harmonix addict.

For my latest "fix" I am going to spend some time cloning the EH Black finger compressor.

The dilemna I have is I have two contradictory schematics, one supposedly from an official EH source, on EH headed note paper, the other supposedly reverse engineered from an EH unit.

http://homepage.ntlworld.com/paul.nelson666/Blackfinger.gif


http://homepage.ntlworld.com/paul.nelson666/EHblackfinger.gif


Now which schematic should I work from?

Granted they share alot of similarities, with themselves and the respective dyna/ross comp.

Put me out of my misery and spread the guru wisdom.

[toneman]

N,

Bottom one looks like original EH drawing.

Other looks similar to an "asian version" i have.

Go with door #2.

[cd]

FYI I've breadboard one both ways, and yet another way from another schematic, and they all work, and sounded same/similar.  Using crappy old 741s is a must though.  No other opamp works properly.

[Zero the hero]

Paul, I got a layout for the hand drawn version of the schematic. I did it one year ago but I never had a chance to build with my hands.
There was a thread in this forum dealing with this project and with my layout.
I'll send you as soon as I can (tomorrow?)

[Bernardduur]

How does it sounds?