Heathkit IM-4100 (EIA-416) Digital Frequency Counter Ham Radio

Heathkit IM-2410 Digital Frequency Counter

HEATHKIT IM-4100 DIGITAL FREQUENCY COUNTER USEFUL FOR RADIO REPAIR

Radio Shack LCD RF Frequency Counter 22-306 (Powers up - Untested)

Heathkit IM-2410 Digital Frequency Counter 10 Hz to 225 MHz Vintage Test Gear

Vintage HEATHKIT Frequency Counter Model IM-4110

Heathkit IM-2400 Frequency Counter LED 50/500MHz POOR CONDITION BATTERY CORRODED

Heathkit IM-4100 Digital Frequency Counter Ham Radio