3-Transistor Amplifier (CB21818E)

This direct-coupled amplifier was found in Mullard's 1960s transistor manual. The transistors are germanium from the time.

| Clique na imagem para ampliar |

Gain-1000 Amplifier Using the 741 (CB257E)
The voltage gain of this circuit is 1,000. This gain is given by the ratio between the 10 M ohm...
Light Operated Relay (CB19968E)
This circuit is from an American manual from 1975. The transistors are types of the time, but...
Rhythmic Sequential (CB18165E)
We found this circuit in a 1982 publication, but all the components used are still common in our...