This 80's circuit uses an audio amplifier to obtain a symmetrical source from a single source. The maximum current is on the order of 1.3 A and the input voltage must not exceed 20 V.
In this receiver the is formed by 80 turns of wire 28 or close in a ferrite rod. The handset is...
This circuit was found in Motorola documentation from 1966. The lamps are according to power and...
We found this zener regulator in a 1978 radio amateur documentation. The operational can be...