Broadband amplifier (CB9005E)

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

Switched Stepdown Regulator (CB8693E)
Found in RCA documentation from the 1960s, this 60 V regulator has a 100 V input and a current of 1...
Overvoltage protection (CB8379E)
Using a reed relay, this protection circuit depends only on the adjustment of the closing point by a wire...
AM Demodulator (CB6197E)
This circuit is from a 1980s Signetics documentation. The circuit separates the modulation signal from a...