Capacitor Resistor Substitution Box SENCORE HANDY 36 Model H-36 Untested Read

Elenco RS-400 Resistance Substitution Box - Vintage

Box of 13 Raytheon 1N305/CK739 Red Germanium Diodes, 1950's NOS Untested

Box Box Resistor Box Varistor Box Physical Tool Substitution Capacitor Kit Car D

Elenco RS‑400 Resistance Substitution Box

Elenco Capacitance Substitution Box CS-440

Mini Protank 3 (Dual coil), Used Untested Parts w/ Original Box

Elenco RS-400 Resistance & RS-440 Capacitance Substitution Boxes KEN