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

DataScan MODEL C1400 10HZ-1..4GHZ FREQUENCY COUNTER * Untested

Vintage Digitron Frequency Counter 6550 USA - Untested As Is

Simpson 7026 Universal Electronic Counter Frequency Timer Test Equipment

Monsanto 150A Automatic Counter Frequency Counter 5Hz–32MHz Vintage Test Equipme

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

Startek Frequency Counter 1.5Ghz - UNTESTED See Photos

OptoElectronics Model: FC-50C Frequency Counter Used Working