Heathkit IM-4100 Digital Frequency Counter Ham Radio

Leader LDC-822, digital frequency counter, 10Hz/80 MHz

One GoldStar FC-7102 Frequency Counter Vintage Lab Test Equipment Powers On

Heathkit IM-4100 Digital Frequency Counter Powers On Ham Radio Test Gear

DataScan MODEL C1200 10 HZ - 1 GHZ FREQUENCY COUNTER Untested with Antenna

WORKS Para Dynamics PDC-256 Frequency Counter CB Radio Tester Digital Display

Vintage DSI Model 3550 Frequency Counter 50 Hz-550MHz

LEADER LDC-822 DIGITAL FREQUENCY COUNTER 80 MHz CLEAN Vintage