VHF and UHF Preamplifier (CB8401E)

Found in a 90s Popular Electronics, this circuit uses a MAR-X to amplify signals up to 2 GHz. The circuit is quite critical.

| Clique na imagem para ampliar |

AD converter with LCD display (CB9025E)
This circuit was obtained in Teledyne documentation from the 70s. The converter component is uncommon...
Emitter Coupled Astable (CB19288E)
This astable multivibrator has an emitter coupling between the transistors. The circuit is from...
Pocket Receiver (CB23692E)
This simple two-transistor receiver was found in Radio Electronics magazine from September 1960....