Vintage scratch build Unknown test equipment

Hybrid Systems ADC 540-8 A.T.O.D. Analog to Digital Converter 8-Bit Vintage

Vintage scratch build Unknown test equipment

Wayne Kerr Auto Transformer ~ 10c/s - 100kc/s ~ Type: T121 - Ser. No.648

Vintage AVO Avometer Model 8 Mk V Analog Multimeter – Untested

TRIS-102A Tratec Fully Isolated System Outlet Transformer TV

EH Research Labs Pulse Generator 132L, Made In England, UNTESTED, SEE DESC.

OPCT16AL 3000/1 AC CT Clamp on Current Transformer High Quality Transformer R4Q1