VCO without varicap (CB9435E)

This circuit was found in a 90s RF Design. It is an oscillator that can reach 800 MHz, with the frequency controlled by an input voltage.

| Clique na imagem para ampliar |

792 or 592 Preamplifier (CB25470E)
We found this circuit in a Radio Electronics magazine from June 1992. The circuit has a power...
Tunnel Diode Transmitter (CB19425E)
This low power circuit for the FM band was found in a spy book from the 90s. The tunnel diode is...
Logic Function Amplifier (CB20034E)
This circuit is from a documentation from the 70s. The circuit uses logic gates of the time, which...