Saw someone else Nixie Tube counter last week and wanted to share my HP 5221A and Bell & Howell 2 1/2 digit DMM that is Nixie Tube based as well : r/electronics
TC* HP HEWLETT 5245L Nixie Tube Frequency Counter + 5265A Voltmeter (KUP22) | eBay
Frequency counter - Wikipedia
Racal 9841 3GHz Nixie Frequency Counter
DIY Nixie Tube Clock Build - News - SparkFun Electronics
File:HP Frequency Counter with Nixie Tubes (5685159103).jpg - Wikimedia Commons
Nixie digital frequency meter PFL-23
RACAL 836 Universal Frequency Counter 32Mhz with 6 Digit Nixie Vintage – Marten Electric @ Blog
Racal 9841 3GHz Nixie Frequency Counter
hp-counter
Making classic frequency counters into Nixie clocks | Evil Mad Scientist Laboratories
Heathkit IB-1100 frequency counter teardown + repair. Contains nixie tubes!
Dutch Amateur Radio Station PA2MRX.
Nixie Tube Frequency Counter - YouTube
General Radio 1192-8 Frequency Counter NIXIE TUBE | eBay
A Converted Nixie Tube Frequency Counter Makes for an Awesome Clock - Hackster.io
