Oscilloscope CRT Driver
Build your own simple old school cathode ray tube oscilloscope, Lissajous display, or a retro tube scope clock with this simple CRT driver board. The board is designed to work with various 1 to 3 inch diameter electrostatic CRTs and works well with the Dutchtronix scope clock kit. The board contains ...
Two Tube AM Radio Transmitter
Want to broadcast your own music or programming to a nearby radio? Reluctant to modify a nice original antique radio for an audio input jack? Looking for a fun and practical vacuum tube project? Then this two-tube AM radio transmitter may be the project for you! ...
Persistence of Vision Clock and Display
A 10 LED persistence of vision (POV) propeller display powered by an ATMega328 with Arduino Uno bootloader that can be programmed for the display to show a clock, message board, or wherever your imagination takes you with the Arduino code. The display running diameter is 9 inches with the LED column ...
4-digit 12-hour relay nixie clock
Show off your retro technology nerdiness with a single board 4-digit 12-hour nixie clock running off DPDT relay logic ready to power your choice of nixies or similar decimal display! The design uses a solid-state timebase and seconds counter for practical purposes so there is no constant clicking no ...
Relay Logic Modules
If you love retrocomputing and considered building digital circuits with electromechanical relays then these kit modules are for you! These 4-bit relay building modules are similar to CD4000 series integrated circuits and could be used to build more complex relay based digital circuits all the way u ...