HP 5245L Nixie Counter - Part 1: The King of 1960s Frequency Meters
HP 5245L Nixie Tube Counter Demo & Teardown
HP 5245L Nixie Counter - Part 2: Repairing the king of Nixie frequency meters
HP 5245L Nixie Counter - Part 3: 500 MHz Plugin Repair (HP 5253A and HP 5253B)
TSP #202 - A Uniquely Complicated Nixie Tube Clock: HP 5245L Electronic Counter & ERA EasySynth++
HP 5245L Nixie Counter - Part 5: HP 5261A Video Amplifier Plugin
HP 5245L Nixie Counter - Part 4: HP 5254A 3 GHz Plugin Repair
HP 5245L electronic counter 1968 8-digit nixie 50MHz test teardown
HP 5245L Nixie Counter - Part 6: HP 5255A 12.4 GHz Plugin Repair
HP/Agilent 5245L Electronic Counter working with my 652A Test Oscillator
HP 5245L Nixie Counter - Part 7: HP 5264 Preset, HP 5262 Time Interval, HP 5257 Transfer Oscillator
HP 5245L nixie counter
HP 5245L Frequency Counter from the junk pile (nixie tubes), inspection and test
#244 HP 5326A Frequency Counter NIXIE - Cleanup Teardown
#120 HP 5326B Frequency Counter and DVM Teardown - NIXIE
HP 5326A Nixie Frequency Counter
HP counter 5245L with nixie tubes and transistor logic
HP 5245L frequency counter
HP 5245L Nixie Counter 10 MHz
HP 5327B Nixie Universal Counter / DVM repair