4-step ladder generator (CB9342E)

Found in American documentation from 1968, this circuit uses both diodes and a neon lamp to generate a 4-step ladder. Observe the signal voltage.

| Clique na imagem para ampliar |

Digitally controlled audio switch (CB12748E)
This circuit can serve as a basis for a digital mixer or simply for a noiseless switch of audio...
Microphone mixer (CB7988E)
This traditional mixer configuration with a high input impedance was found in a 90’s Popular...
1-transistor radio (CB20247E)
This medium wave radio works with any general purpose NPN transistor. The diode must be made of...