Gemanium Transistors DC Amplifier (CB14775E)

This instrumentation circuit was found in the 1960 transistor application manual. More modern transistors can be used.

Step-up attenuator (CB26096E)
This signal attenuator was suggested by Electronics Now magazine in April 1999. The circuit is...
Metronome 555 (CB11941E)
This common metronome configuration has already appeared in several of our articles and projects. This...
Frequency Doubler with the 741 (CB12267E)
In the figure we have a circuit with two operational amplifiers 741 capable of doubling the...