This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of the signal obtained is shown in the diagram.
This circuit for signals up to 30 MHz can improve your reception in the medium and short-wave...
This two-channel bargraph meter uses a single KAA2281 integrated circuit. Found in the January 1991...
This circuit allows to increase the output power of a 741 as an amplifier. The circuit is from a...