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
File:HP Frequency Counter with Nixie Tubes (5685159103).jpg - Wikimedia Commons
Racal 9841 3GHz Nixie Frequency Counter
RACAL 836 Universal Frequency Counter 32Mhz with 6 Digit Nixie Vintage – Marten Electric @ Blog
Display the Time on an Old Frequency Counter - nixies.us
Frequency counter - Wikipedia
A Nixie Clock, The Hard Way | Hackaday
Nixie Tube Counter Clock
TC* HP HEWLETT 5245L Nixie Tube Frequency Counter + 5265A Voltmeter (KUP22) | eBay
DIY Nixie Tube Frequency Counter – Dr. Scott M. Baker
A Converted Nixie Tube Frequency Counter Makes for an Awesome Clock - Hackster.io
TC* HP HEWLETT 5245L Nixie Tube Frequency Counter + 5265A Voltmeter (KUP22) | eBay
The ultimate NIXIE tube frequency counter - YouTube
Racal 9841 3GHz Nixie Frequency Counter
Dutch Amateur Radio Station PA2MRX.
Nixie Tube Frequency Counter - YouTube
NIXIE Tube Programmable Frequency Display - YouTube
Making classic frequency counters into Nixie clocks | Evil Mad Scientist Laboratories
DIY Nixie Tube Clock Build - News - SparkFun Electronics
Making classic frequency counters into Nixie clocks | Evil Mad Scientist Laboratories
