Found in Radio Electronics magazine, May 1987. It triggers a xenon lamp from an inductive sensor. The circuit requires 200 to 400 V DC to operate.
We found this circuit in the June 1991 issue of Radio Electronics magazine. The integrated circuit is...
This polarity test or indicator indicates the polarity of a power line by LEDs. The circuit is...
This circuit is from Motorola's 1990 Linear Databook. The transistors allow equivalents and the...