This circuit is from a 1968 documentation. It generates a non-symmetrical signal with the waveform shown next to the diagram. Transistors are of the time, but modern equivalents can be used.
Found in a 1960 General Electric documentation, this crowbar circuit blows the fuse in case of...
This circuit was originally designed for testing crystals used in color televisions, but it works...
This bridge-biased transistor test circuit measures gain in the range 0 to 300. Circuit is from...