Found in a period book, this two-valve circuit is battery powered. Listening is through a high-impedance phone. Capacitors are typically 1 nF.
1921 reflex receiver (T1556E)
- Details
- Written by: Newton C. Braga
Found in a period book, this two-valve circuit is battery powered. Listening is through a high-impedance phone. Capacitors are typically 1 nF.
