Found in Motorola's 1968 power circuit manual, this circuit has a high input voltage and no information was given about the transformers as the original types are commercial at the time.
The operational amplifiers of this circuit can be replaced with more modern equivalents. The power...
This circuit, from an old publication from the 70s, can be assembled with a 2N2646 unijunction...
Indicated for vinyl media recovery, this circuit is from the 80's, having been found in an...