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 |

Current-Controlled Oscillator (CCO) (CIR116E)
The circuit shown here is a CCO. The frequency here depends on the current through the...
15 Channel Remote Control (CB13997E)
This decoder TTL circuit for 15-channel remote control was found in Selezione Radio, Italian...
Darlington Touch Switch (CB7191E)
This circuit is from 1968 General Electric documentation. It can certainly be adapted for any...