Vintage Frequency Counter Model Regency Model EC-175 Frequency Counter (175Mhz)

MFJ 886 Frequency Counter 1 MHz - 3 GHz

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

Vintage RadioShack LCD RF Radio Frequency Counter CAT: 22-305 1-1300 Mhz

Vintage Digitron Frequency Counter 6550 USA - Untested As Is

DSI 3550Frequency counter-Powers up- Working??

Startek Frequency Counter 1.5Ghz - UNTESTED See Photos

Vintage HealthKit SM-128B Frequency Counter Powers On (Untested)