This 6C5 tube circuit was found in a modern tube design manual. The circuit applies to other equivalent triodes.
This circuito from the 1977 GE Semiconductor Manual circuit provides timings from 0 to 90 seconds...
LEDs are diodes and can be tested with a simple configuration that allows the display of its...
This reflex receiver was obtained from a 1963 documentation. The transistors are germanium, and...