Extended range power control (CB7935E)

This circuit was found in a General Electric documentation from 1965. The circuit is full wave for 600 W power with the indicated triac.

| Clique na imagem para ampliar |

Voltage Controlled Amplifier (CB25145E)
This VCA was found in the July 1988 issue of Radio Electronics magazine. It uses an OTA op amp and...
Waveform Converter (CB6668E)
Found in US documentation, this circuit changes the waveform and phase of a sine signal. The...
Antenna Impedance Bridge (CB4122E)
Found in an American amateur radio documentation by the name of “antennascope” this circuit is...