Suggested by General Electric in an old documentation, this circuit can use modern SCRs and the transformer has a voltage according to the rail and current of at least 3 A.
This is the basic operational amplifier configuration for gain 10. R2 can be changed to other...
This circuit was obtained in a 1988 publication, but it can be assembled very easily today, as all...
This circuit was found in a 1966 EEE. Transistors support modern equivalents and the waveforms are...