10.7 MHz Amplifier (CB4290E)

This is a classic FM amplifier IF amplification stage configuration. The circuit is from a 1980s documentation. CN is the neutralizing capacitor.

| Clique na imagem para ampliar |

Up to 100 Minutes Timer (CB12117E)
In this circuit, obtained from a 1979 publication, IC1 is a 555 and IC2 is a 4020. The transistor is the...
Gain 10,000 Amplifier (CB23747E)
This is a circuit with the first commercial Darlington transistor, the 2N626. The circuit is from...
SCR trigger (CB21461E)
This simple SCR trigger was found in a 1965 General Electric SCR manual. The circuit makes use of a...