This circuit detects when an audio signal exceeds a certain level or even occurs due to an object falling, a door slamming or other. The circuit is from a Radio Electronics from January 1980.
This circuit was found in a documentation from the 50's. The transistor is made of germanium and...
Here we show a configuration in which we have a control voltage applied from a voltage divider, which...
March 2017 - The new Texas Dual ISO762xxL digital isolators are available at Mouser Electronics...