This circuit is the factory version of the LM386 low-power amplifier. The sound quality is excellent, and the power can be supplied with voltages from 6 to 16 V.
To obtain a signal with a variable mark / space ratio in a ratio of 1 to 20 to 20 to 1, we have...
Found in an Electronic Engineering from the 80's, this circuit makes use of components of the...
This circuit, which can use a reed sensor, is indicated for doors and windows. The circuit was...