Heathkit Heath Schlumberger SM-114A 600 MHz Frequency Scaler - Tested

Boeckeler Instruments Microcode II Digital Counter Scaler Model 1-MS AS-IS

Heathkit IB-102 Frequency Scaler 2 MHz-to-175 MHz - Tested

Heathkit IB-102 Frequency Scaler 2 MHz-to-175 MHz - Tested (with photos)

HP 05345-60011 A11 Scaler Assembly Board for HP 5345A Frequency Counter

Griffin Timer Scaler & Frequency Meter

Griffin & George XKS-350-101F Timer Scaler & Frequency Meter

Vtg Radiation Counter Lab Binary Scaler Ratemeter