Found in a 90’s Electronics Now, this circuit has its output connected to an audio amplifier. The transducer is the type that fits on the finger to monitor the transparency and thus the beats.
This circuit is from a 1974 publication. It generates a pulse with several sinusoidal cycles from...
This circuit is indicated for applications powered by 12 V sources. The battery is 12 V according to...
This LED signaling circuit uses a programmable unijunction transistor (PUT) as a relaxation...