Geiger counter with high voltage source (CB22333E)

This circuit includes a high voltage inverter to power a Geiger tube. We found it in an American documentation from the 60s.

Fuzz Distortion Pedal (CB11247E)
This well-known configuration of the guitar effects pedal was obtained in an English magazine from...
Bargraph Peak Detector LM3915 (CB14385E)
This circuit was obtained in the National Semiconductor Linear Applications Handbook of 1994. The...
48 V Fast Current Sensor (CB5242E)
For -48 V voltages, this fast sensor was found in a 2005 Linear Technology application manual. The...