3 A switched regulator (CB8859E)

Found in a 90s Popular Electronics, this circuit provides a current of 3 to 5 A depending on the transistor.

AM Repeater and Transmitter (CB11930E)
The circuit shown in the figure can act as a home repeater for AM signals from the output of an...
Neon Data (CB14444E)
We found this circuit in an English documentation from 1968. The circuit draws a number from 1 to...
Darlington Time Delay Switch (CB25613E)
This relay time delay circuit was found in the October 1993 issue of Electronics Now magazine. The timing...