This circuit provides an output voltage with approximately twice the input using two power transistors and a voltage doubler. The circuit is from a 1970 EDN.
This full wave source uses germanium diodes, and its current is a few milliamps. We found it in an...
This circuit was found in an 80's Electronic Design. The frequency depends on the crystal and the...
Found in an American publication from 1968, this circuit generates pulses at a rate of 2,500 per...