This is a copy of this Nixie tube clock that was published in the December 1970 and January 1971 issues of Popular Electronics.

Here are new schematics and PCB layouts

Here is the reproduction with six digits installed.

Here is a prototype cover

Earlier version with just 2 digits, power supply wiring has been moved under the boards.

Here are some more photos from the magazines.

6 Digit version

4 Digit version

Popular Electronics Issues
Michael Holley's SWTPC Collection Home Page
This page was last edited August 13, 2013