almost free (postage) TM500 plugin extender pcbs

John Griessen

These are much simpler than Dan Meeks's extenders, and parts are running out and they will be no more.

There are 12 pcbs for making one of of these:

12 left:

I'll mail two for $1.60 first class paid via paypal. More for a little more. Not less than 2 though.

John Griessen -- building lab gear for biologists
Ecosensory Austin TX

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