20W HiFi Amplifier (T496E)

Found in a 1947 publication, this 7-tube amplifier uses four tubes in the output stage. The circuit uses a power source with a transformer.

| Clique na imagem para ampliar |

Microphone Preamplifier (CB26214E)
We found this circuit in Radio Electronics Special Projects from 1992. The circuit turns on the...
Null Detector (CB11550E)
We found this circuit in the Texas Instruments' Linear Circuits Applications. It uses an...
RF proximity sensor (CB8765E)
This capacitive sensor that operates with a high frequency oscillator was found in Radio...