This high-power circuit was found in July 1986, Radio Electronics magazine, requiring a high-current source. Equivalent MOSFETs can be tested
This Nixie pipe circuit was found in 1965 documentation. Note the high supply voltage. Appropriate...
This circuit is from a 1976 publication, but it can be assembled with modern components. For the...
Found in Popular Electronics from the 90's, this circuit consists of an audio oscillator for Morse...