Unfortunately these are not available anymore:
groupdiy.com
Does anybody have two PCBs left he wants to sell?
Sold - FS: PCBs for TG1 Zener Limiter NOT AVAILABLE ANYMORE
NOT AVAILABLE ANYMORE! I've done my own PCB layout of the circuit for the TG1 Zener Limiter (original schematics somewhere in this thread Anyone interested to build a TG1 clone ?) and while I usually etch my own boards I've decided this time to try a fabrication service. It was the first time...

Does anybody have two PCBs left he wants to sell?