This circuit is from the old RCA transistors manual of 1964. The transistor can be the BC558 and the phone must be a high impedance magnetic type.
Morse Code Practice oscillator (CB9885E)
- Details
- Written by: Newton C. Braga
This circuit is from the old RCA transistors manual of 1964. The transistor can be the BC558 and the phone must be a high impedance magnetic type.
