DRUM MACHINE USING NASA TECHNOLOGY - Rope Core Memory Sequencer
10:20
The First Ever Drum Machine You Could Buy - 1959 Wurlitzer Sideman
21:14
Making A Synthesiser Sequencer Out Of RELAYS Part 1
23:59
Core Memory Explained and Demonstrated
12:52
Relay Sequencer (no electronics) - Testing This Noisy Music Machine
9:58
Soviet 80's Autodialler But with 60's Space Tech Program Memory
22:34
I spent all summer building THIS! (relay computer)
20:08
DIY Laser Image Projector (100ft+ Range!)
11:53