Vintage Custom Simpson AM Antenna 5 AMP Portable Base Current RF Meter Model 39

Vintage Simpson 0–20 AC Amp Analog Panel Meter Model 57

Vintage Simpson Model 375 Amp Meter ( untested )

Vintage Simpson AC Amperes Panel Meter 0-5 Amp Range, Untested

Vintage Simpson DC Ammeter 0–10 Amps – Portable Analog Meter – Untested

Vintage Simpson Model 185, 0-15A DC Amp Gauge, Panel Mount Meter, NOS !

Vintage Simpson MODEL J3741 D.C. Amp Panel Meter 0-10 Amps 3"

Vintage - Simpson 0-100 DC Microamperes Gauge / Meter Panel Instrument