This circuit is from an old RCA documentation. The circuit sources a charging current of 1 A and is intended for the 6 V lead acid battery used in some cars of the era.
This circuit is from old documentation. The operational amplifier is uncommon nowadays. The...
This instrumentation circuit was found in the September 1989 issue of Radio Electronics magazine....
This JFET amplifier was found in documentation from 1958. The circuit has voltage gain of 4 and 10...