Gemanium Transistors DC Amplifier (CB14775E)

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

RMS to DC Converter (CB6593E)
Found in older documentation this setting applies to modern components, noting that the power...
Tone Transmitter (CB24673E)
This circuit can send signals in both the VHF and FMN bands with a range of a few tens of meters. The...
Low voltage indicator (CB9550E)
This circuit indicates when the voltage of a 12 V battery is low. With changes, for example, the...