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 thermostat was found in a 1997 publication. It can be powered by 6 V with the use of a...
The circuit shown in the figure causes the lamp to light up after a certain time determined by the...
This is the normal circuit of a relaxation oscillator using an unijunction transistor such as the...