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 circuit detects traffic problems on a miniature railway by triggering an alarm. The circuit was...
When establishing the voltage at the input of this regulator, the output voltage rises smoothly until...
This circuit was found in a Motorola documentation from 1975. Modern equivalent transistors such...