Leach Low Tim 3A

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I have these low tim 3A Leach boards got them from a coworker i can't figure what version are these boards it got a few jumpers in the front end it look like the double barrel front end anyone have any idea what version is this or if any info available on this version.
 
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.
 
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