Ever since I became interested in the Dan Armstrong effects I've heard that the WD versions were different and not as good as the originals.
A friend recently gave me a WD Orange Squeezer and I just couldn't get it to sound like the Musitronics version I have.
So today I finally traced the WD to see where they differ.
The most obvious differences are that the WD uses an LF351 chip, SK30A JFETs and a silicon diode,
whereas the Dan Armstrong used a 4558, 2N5457's and a germanium diode.
Here's the schematic and PCB layout for the Musitronics version:
And here's the WD:
If you see any errors, please let me know and I'll do my best to correct them.
