Simple Neon Flasher Circuits

The post details about a few simple neon flasher circuits

The ionization potential of a neon used in the circuit is around 70V. To the extreme left of circuit 1, a neon is connected.

A 0.47 microFarrad capacitor connected across the neon gets charged
through a 1 MOhms resistor. The moment the voltage across the capacitor
reaches 70V, the neon get ignited as the capacitor starts discharging
through it.
The capacitor is discharged through the lamp, creating a flash till the
voltage falls below 45V, a sustainable voltage for the neon to glow.
It is a part of the circuit. Smaller values of R and C will result in an
increase in the frequency and vice versa. The other two circuits are
for the second and third neons respectively.
All the circuits operate on the same principle. All capacitors must have
a sustainable voltage more than 100V. A capacitor is to be of polyester
or polypropelene type for best results.
All neons do not have matching characteristics. Hence, while using multiple neons it is advisable to select matched ones.