Broadband amplifier (CB9005E)

For a 75ohm output, this circuit was found in ancient American documentation, using components from the time.

Battery Condition Indicator (CB4984E)
The circuit is from an 80's publication, but the components are current, only special type diodes...
Protected Power Supply (CB4667E)
The maximum current of this power supply is 2 A and the output voltage can be set between 6 and 24 V. The...
Speed and direction control for universal motor (CB4249E)
This is a circuit of the 80's ON Semiconductor thyristor manual. Of course, the configuration can be...