There were only two versions of the Leach Superamp.
There were at least four versions of the lower-power amplifier. What are the dimensions of the board? If you can see the mounting holes for four emitter resistors, it will be this version; if there are eight then it's the high power version.
You might have a third-party version, too. I have documentation for most of the original Leach designs though I never built the version 3.
There were at least four versions of the lower-power amplifier. What are the dimensions of the board? If you can see the mounting holes for four emitter resistors, it will be this version; if there are eight then it's the high power version.
You might have a third-party version, too. I have documentation for most of the original Leach designs though I never built the version 3.
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