This is an amplifier circuit intended for modulating transmitters. The 5-tube circuit is from an American manual from 1947. The power supply uses a transformer.
This circuit was obtained in a documentation from the 1970s. What it does is to delay trigger a...
With this circuit it is possible to make the selection of transistors and their test according to the...
This memory flip-flop must be powered by 5V voltage. The circuit stores 1 bit. ...