This transistor curve tracer was described in a December 1969 Radio Electronics article. It consists of a ladder-type signal generator that applies stepped voltages to the transistor under test.
The purpose of this circuit is to produce a quick discharge on a shorted battery to attempt its...
This circuit can be connected to the output of alarms or sirens with the 555, CMOS or TTL,...
The CMOS 4046 integrated circuit is not very common today, consisting of a very efficient PLL for...