Found in a 1938 Radio Handbook, this circuit uses a triode of the time. High voltage is provided by a battery. The filament is 1.5 V.
Telegraphy practice oscillator (T429E)
- Details
- Written by: Newton C. Braga
Found in a 1938 Radio Handbook, this circuit uses a triode of the time. High voltage is provided by a battery. The filament is 1.5 V.
