This circuit was found in a Popular Electronics from the 90s. The circuit has temperature compensation. Coil and capacitors depend on the frequency at which the circuit will be used.
This circuit for 6 lamps was found in old American documentation. The supply is of high voltage...
This oscillator takes advantage of the 2000 ohms headphone inductance as the oscillator circuit coil....
This circuit was found in an article in Radio Electronics magazine. The issue is from July 1992...