This circuit for analog TV was found in an American documentation from the 90s. The circuit uses an unusual power transistor today.
Found in an EDN from the 80's, this circuit makes use of an operational one of the time. The...
This circuit was found in a 1962 publication. At the time there were high voltage batteries like the...
This circuit was found in a Motorola Manual of 1965. The circuit has neon lamps as trigger...