This Nixie pipe circuit was found in 1965 documentation. Note the high supply voltage. Appropriate transistors of the time were used.
Found in an Electronics Now from the 1980s, this circuit uses some components that are still...
Unlike the previous one, this circuit uses only one resistor in the base polarization. The...
This circuit has a voltage gain of 30 times and passband of 14 MHz. The circuit is from the 1974...