This modulator amplifier for transmitters was found in a 1947 American book. The circuit uses an output with 4 tubes connected in parallel and in push-pull.
This differential amplifier with high input impedance is used in instrumentation. Other...
This circuit makes use of a commercial type current transformer. The circuit is from a 2005 Linear...
The configuration shown in the figure has been requested a lot by many readers who need a circuit...