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Old 18th February 2015, 10:33 PM   #1
krellmk is offline krellmk  United States
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Default Leach Low Tim 3A

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.
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Old 19th February 2015, 03:37 AM   #2
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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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Old 19th February 2015, 07:30 AM   #3
krellmk is offline krellmk  United States
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The board does say Low Tim 3A
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Old 20th February 2015, 07:54 AM   #4
djk is offline djk
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The jumpers may be the 'bad board' fix.

There were quite a few of those that needed some traces cut and jumpers added (boards sourced from Leach in 1985).

(I'm the one that brought this to the attention of Leach)
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