Ionization Chamber Voltage Tripler (CB25668E)

This ionization chamber voltage tripler circuit from the January 1994 Electronics Now magazine uses diodes.

FETs Integrator (CB19375E)
This integrator circuit uses the junction FETs which can also be the BF245 or MPF102. The...
Battery charger (CB1225E)
This 6 V battery charger was found on a 1987 Hands On Electronics. Rc determines the charging...
Constant torque control (CB7936E)
Found in an American publication from 1968, this circuit aims to keep the torque of a DC motor...