CAUTION high voltage information :
If you look around for single-use cameras with flash tube on the upper front which are made for weddings etc - I find them at resale stores such as Good Will or Salvation army etc.for a dollar - I press and hold down the flash button on the front of the camera and if the ready light comes on in neon orange ( but not LED green or red), then it contains a tiny neon lamp which can be removed after the outer shell of the camera is removed. If the camera is very old, the internal AA-battery may be discharged and no light comes on. Watch out for the high voltage capacitor inside - it may have up to 330 volts across the terminals - I discharge with a screw driver and get a loud bang. Do this discharge before any further handling of the flash board.
------------ Original Message ----------
From: Paul Andrews <[email protected]>
Date: April 28, 2019 at 7:21 AM
They don’t need AC. They will run off DC, but only one electrode will light up. Also, 60V will be either the maintenance voltage or the minimum strike voltage. You can think of them as small Nixie tubes, so you just need to calculate a suitable current limiting resistor, like you do for nixies.
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