Found in a 1990s US publication, this alarm circuit detects when a light beam is interrupted. Optical resources may be used for the sensor and instead of the alarm a relay may be used.
This 60 V High Side bidirectional sensor was found in a 2005 Linear Technology handbook. The...
We found this electronic organ circuit in a 1987 documentation. The circuit should be powered by...
This fuzz uses only one transistor that can be the BC548. Signal input and output cables must be...