TSCM Leader Signal Level Meter # LFC-945 - Not Tested

General Radio 1933 Precision Sound Level Meter & Analyzer - UNTESTED/JUA3412

Automatic Distortion Meter 0.01%-30% Audio Signal Distortion Analyzer TDM-1911

Ruyan Signal Level Meter

BSR METROTEC MUSIC SOUND LEVEL METER

NOS/NEW Radio Shack Realistic Sound Level Meter No 33-1028 in Box, 1970s (1E)

Progressive Electronics 200EP Inductive Amplifier & 77HP TRACER 2 - w/ Case 700C

Progressive Electronics, 200EP, Inductive Amplifer w/ Tracer 2 Model 77HP, Used