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 circuit keeps the courtesy lights of a car on for a while after the doors are closed. The...
This circuit was obtained in an Electronics Now from the 90s. The circuit uses operational...
This circuit was originally designed to measure the gain of two-door RF MOSFETs as indicated by...