Radio-Electronics-1956-02 Tube Echo Unit.pdf- (355.61 KiB) Downloaded 59 times
Daniel M. Costigan, Build This Simple Echo Unit, in: Radio Electronics, February 1956 🇺🇸
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modman
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cspar
- Breadboard Brother
A glimpse of the past when safety wasn't much of a concern in design.
Interesting in a historical perspective but the lack of a isolation transformer is a scary fail.
Interesting in a historical perspective but the lack of a isolation transformer is a scary fail.
"Just because the forgoing circuits have produced results there is no reason experimenting won't lead to added results." L. E. Darling, in his article containing the earliest published vacuum tube synthesizer circuit, Popular Science Jan 1920