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Leach Low Tim 3A
Leach Low Tim 3A
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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
Damon Hill is offline Damon Hill  United States
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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)
Candidates for the Darwin Award should not read this author.
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