Found in an Electronics World of 1968 this circuit can use any SCR and diodes depending on the load. The circuit is full wave and the unijunction can be 2N2646.
Suggested by Siliconix in documentation from the 90s, this amplifier has its gain digitally...
We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the...
This circuit is from a 1992 PE Hobbyst Handbook. The circuit fires an old electronic flash using an...