Direct Output Coupling Amplifier (CB6202E)

This power step drains just 3.5 mA from the battery and can provide good playback on a 4-ohm speaker. The circuit is from an 80's documentation.

| Clique na imagem para ampliar |

Preamplifier and Equalizer (CB18860E)
This circuit is from a 1968 publication. It uses germanium transistors from the time, having...
The Transistor as Switch (CB922E)
This circuit can be used as shield or to drive powerful loads from low current switches such as...
CBS Columbia TR 260 Radio (CB18446E)
This is a 6-transistor transistor receiver manufactured in the 60s. The circuit is a...