This circuit limits the intensity of an audio signal from a control voltage. The circuit is from a 90’s Radio Electronics. The coupler is a type that uses LDR.
This circuit detects the phase of a signal. As it is a TTL circuit, it must be powered by a...
This oscillator for practicing code with a transistor was found in Popular Electronics. The...
This high-power flasher for incandescent signaling lamps was found in a 1980s General Electric...