Found in Popular Electronics from the 90s, this circuit is intended for a radar emitting pistol. The circuit is very critical for the frequency at which it operates.
This simple transistor gain test acts as an oscillator for the transistor under test. The circuit is...
This circuit allows fluorescent lamps to be powered up to 40 W from 12 V car batteries. The...
This circuit is from 1992 documentation, but it can still be assembled today, as the components used are...