TTL pulse detector and indicator (CB22414E)

This TTL circuit with the 7400 serves as a pulse indicator. It must be supplied with a voltage of 5 V.

Electric Tool Torque Control (CB20794E)
Found in American documentation from the 1970s, this circuit can be designed based on a modern SCR,...
Codecs and Audio Circuits
June 2017 - A wide variety of Rohm Semiconductor audio and codecs for audio is available from...
7 to 15 V protected regulator (CB8679E)
Found in a 1964 Electronic Design, this circuit must use transistors according to the supplied...