HP 5245L Nixie Counter - Part 4: HP 5254A 3 GHz Plugin Repair
HP 5245L Nixie Counter - Part 2: Repairing the king of Nixie frequency meters
HP 5245L Nixie Counter - Part 1: The King of 1960s Frequency Meters
HP 5245L Nixie Tube Counter Demo & Teardown
HP 5245L Nixie Counter - Part 7: HP 5264 Preset, HP 5262 Time Interval, HP 5257 Transfer Oscillator
HP 5245L Frequency Counter Repair - 1960's Technology - Nixie Tubes & No Integrated Circuits!
HP 5245L frequency counter
HP 5245L electronic counter 1968 8-digit nixie 50MHz test teardown
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 5327A Timer / Frequency counter - Nixie display
HP 5245L Nixie Counter - Part 3: 500 MHz Plugin Repair (HP 5253A and HP 5253B)
Nixie Tubes Are Cool (HP 5321A Electronic Counter)
HP 5245L Nixie Counter - Part 6: HP 5255A 12.4 GHz Plugin Repair
Leader ldc-821s Nixie tube frequency counter
Nixie Counter - Detail
HP 5245L nixie counter
First look at barn find HP 5247M Nixie tube counter
Nixie Tube VP-4541A Frequency Counter Restoration
HP 5245L Frequency Counter from the junk pile (nixie tubes), inspection and test
