This circuit found in 1969 Popular Electronics is used to power a gas laser. The circuit produces a continuous voltage of 1,600 V. Diodes are high voltage types.
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...