Electromechanical Digital Relay Clock - A Relay Computer That Calculates the Time
Electromechanical Relay Nixie tube digital clock prototype with accurate time
Electromechanical Relay Nixie tube digital clock prototype with 24 hour cycle reset
Relay computer compile, load and run
Electromechanical Binary Clock with 55 Relays and Light Bulb Display
Relay Clock CV15
Relay clock - first project
Relay Clock Demo
Nixie tube Digital Clock DC624ER - Function demonstration
From a simple switch to a relay clock
Gates DC-10 electro-mechanical digital clock (1972, USA)
Relay clock
Nixie Tube Display for the Relay Binary Clock!
Relay nixie clock
DC-40-WR-Nema-System-Wireless-Clock-with-Relay-Activation
Relay Clock version 2
Digital clock with relays, diodes, resistors and displays.
Nixie tube clock with electromechanical relay effect
Mechanical Nixie Clock (Relay Made)
The Nixie Tube Relay Clock: how it works and what's inside!