This simple logic test circuit with 3 LEDs was found in October 1985 Radio Electronics magazine. The power supply is according to the logic, and this version is indicated for TTL.
This circuit provides 15W per channel and can operate with a single power supply. The circuit is...
This circuit monitors the clock pulses of a microcontroller or microprocessor. It was obtained in a...
This circuit was found in a publication for radio amateurs in 1978. The circuit is an automatic gain...