E)
This audio filter was found in the August 1993 issue of Radio Electronics magazine. It cuts low and high frequencies corresponding to rumble and scratch noises that occur on turntables.
This transmitter is modulates a infrared light source from an audio signal. Applications include a...
Information about the high voltage transformer and the detecting circuits was not given in this...
This Wheatstone bridge has a thermistor or NTC sensor, allowing the measurement of temperatures by...