This dual-LED circuit indicates three signal levels. It was found in the January 1996 issue of Electronics Now magazine. The integrated circuit may be an LM339 or another comparator.
The circuit shown is a Pierce type oscillator and operates at the fundamental frequency of the...
This 100 kHz oscillator was found in a 1966 Motorola publication. The transistors are of types...
January 2017 - Texas Instruments' new TPS54200 integrated circuit for excitation of LEDs with a...