This circuit is from a 1991 PE Hobbyst Handbook. The circuit uses two trigger transformers for a xenon lamp. The trigger element is a neon lamp that controls an SCR.
This is the basic operational amplifier configuration for gain 10. R2 can be changed to other...
This circuit uses a capacitor that depends on the frequency of the crystal. We found it in a 1967...
The crystal frequency of this circuit found in an American documentation is limited only by the...