This is another sampling and holding circuit found in a factory manual from the 1980s. The circuit can be implemented with more modern components. The FET is not a common component today.
This common emitter amplifier with 43 dB gain was found in the August 1970 issue of Radio...
The diagram below is an application of the Texas Instruments TPS25221 to an ISM controlled power...
In this circuit of a 1968 publication the unijunction may be 2N2646 and the transistor BC548. The...