This circuit was found in a 90s Popular Electronics. The circuit uses components from that time, intended to receive signals in the range of 150 to 250 kHz.
In the figure we have the way to obtain a monostable action by lighting an LED for a certain time...
This simple power supply is not regulated and the output current depends on the transformer. It...
This integrated is indicated for sound systems of stereo televisions and stereo radios. Its pinout...