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.

Current to Voltage Converter (CB15726E)
The presented circuit provides an output voltage proportional to the input current, according to...
Galvanometer Amplifier (CB15844E)
This circuit can be used in bridge of sensitive measures. We found it in a documentation from the...
Pulsed Light Alarm (CB6439E)
This circuit provides a high intensity pulsating signal to a speaker. The circuit is from an...