Suggested by a 90s EDN, this circuit supports almost any LED as a source and a phototransistor as a detector. The circuit operates with a PLL 567 at a frequency of around 40 kHz.
This circuit consists of a traditional amplifier version with complementary output using BD series...
This continuity test was found in a 90s Electronic Engineering. Transistors are types of general...
This filter was found in Texas Instruments documentation from the 1980s. The circuit uses a common...