This limiter circuit provides a constant amplitude signal at frequencies of up to 100 MHz. The circuit operates with 9 mV input signals and was found in a 1969 US documentation.
This amplifier with differential input uses two old op amps but can be implemented with modern op amps....
This signal switching circuit uses currently unusual field effect transistors and an operational one that...
This JFET amplifier was found in documentation from 1958. The circuit has voltage gain of 4 and 10...