General Radio 1192-8 Frequency Counter NIXIE TUBE | eBay
A Converted Nixie Tube Frequency Counter Makes for an Awesome Clock - Hackster.io
Dutch Amateur Radio Station PA2MRX.
Nixie digital frequency meter PFL-23
Nixie Tube Frequency Counter Modification Video #1 - YouTube
Tube Time (@tubetime@mastodon.social) on Twitter: "Sunday afternoon mini-project: fixing my Nixie tube frequency counter. symptoms: it won't count, and something is wrong with one of the digits. https://t.co/0nSQGW1PIF" / Twitter