This circuit is from a 1968 Electronic Design. The circuit uses transistors of the time that can be replaced with modern equivalents. More stages can be used to get higher tension.
This circuit, found in a 1994 documentation, uses 20 A 2N5448 triacs or equivalent and should be...
This sweep oscillator was found in 1980s American documentation and can be assembled with current...
This circuit uses one of the first commercial transistors, availble in 1958, year of the...