[Hallicrafters] Centralabs PA-20-S switch designers kit

[Jim Liles]

Maybe wrong venue but decided to post on this reflector first.

I have a complete Centralab PA-20-S engineers rotary switch designers kit (1 3/16”) ceramic or phenolic wafers.  I would like to trade it for the Centralabs or OAK 1 7/8” wafer kit.  the 1 7/8” kit is used for the switches in the final compartment and are rated at 9 to 10 amps and consists of two rivet contacts/clips.

I’ve had the kit for 40+ years and used it for a design contract in the 60’s, using only a few switches.  It comes with the nibbler machine to custom make rotor plates and includes all three blades.

This kit is probably one of a hand full or maybe the only kit in existence that includes the nibbler.  It will make just about any switch configuration that uses the 1 3/16” wafers.

Thanks for looking.

Kindest regards Jim K9AXN