The purpose of this circuit is to check the linearity of SSB amplifiers. The circuit was found in an old documentation for hams. The diode is a general purpose detector type.
Found in a Motorola documentation from 1965, this circuit consists of an electronic ignition with a...
This circuit indicates the logic level of a digital signal. LEDs can replace the lamp, wired with...
Small variations in the resistance of the subject's skin holding the test leads are detected by...