Found in a1969’s neon lamp documentation, this circuit uses a high voltage transistor. The output currents reach 100 mA.
The circuit presented uses Linear Technology Operationals, having been found in a 1993 manual. The...
The circuit presented with low drift is from the Motrorola LinearDatabook of 1990. The circuit...
120 degree lagged signals can be obtained with the simple configuration shown in the figure....