This circuit was found in a Motorola documentation from 1968. The load current is 10 A. The components used are from that time and information about the transformer is not given.
This very high input impedance circuit is suggested by Texas Instruments. The circuit can be...
We found this circuit in the August 1994 issue of Electronics Now magazine. The circuit is based on...
This bargraph circuit using LM3914 was found in the October 1980 Radio Electronics magazine. Note...