Broadband Amplifier (CB21859E)

This circuit has a voltage gain of 30 times and passband of 14 MHz. The circuit is from the 1974 Ferranti transistor manual.

Constant Current Source II (CB19950E)
The operational used is uncommon today, but equivalents can be used. Unlike the previous one, this...
Clock alarm timer (CB21290E)
Found in Popular Electronics from the 90's, this circuit uses common components and can be easily...
TLC272 Peak Detector (CB11540E)
We found this circuit in Texas Instruments' Linear Circuits Applications. It is a peak detector whose...