We found this circuit in the 1977 RCA Solid State ICs. The circuit consists of a current amplifier with a gain of 1000. The supply must be made from a symmetrical source.
Other operational amplifiers in the series, such as the MC34072, MC34074, MC35071, MC35072,...
This circuit is from an old RCA MOSFET manual from the 70s. The circuit can be implemented with...