All by STC 709AAB 1.4 MHz x 3.1 kHz LSB BD 88935 iss 1
B14 Glass Vacuum Heated Thermistor STC, c.1963 10KΩ @20°C Rare, Cool, Made in UK
Large Thermionic Valve - STC 4212EC 4212 : internal loose wires
Vintage STC Choke – AUA 46273-24
Handbook on Electrical Filters, Synthesis, Design and Applications 2nd Edition
25x Clip On Ferrite Core Ring Noise Suppressor Connector Filters Cable Clamp Kit
20x Ferrite Core Ring Clamps Clips Cable Connector Noise Filters Suppressor Kit-
