Receiver for echo sounder (CB22357E)

Found in old documentation, this circuit is the receiver for the previous circuit. Components are common nowadays.

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...