Ne-2 glow bulbs are flashing bright purple when I first plug in, frying the bulb and sometimes the resistor, too. I've tried three resistors (47, 100, 150), and and two different types of glow bulb with the same results. So , too much current I assume, but I don't understand why this is happening. Any ideas? Thanks!
Facts: Tried 150, 100, 47 all with same results. Resistors from Radio Shack, 1/2 watt. To test I've just twisted the wires to a lamp cord and plugged in to standard household outlet. The wiring in the original equipment (old clocks) just connects straight to the mains. Bulb is ne-2, with mfg. recommended 150 ohm resistor. http://www.allspectrum.com/store/neon-lamp-ne-6x20-30mm-leads-p-145.html
Facts: Tried 150, 100, 47 all with same results. Resistors from Radio Shack, 1/2 watt. To test I've just twisted the wires to a lamp cord and plugged in to standard household outlet. The wiring in the original equipment (old clocks) just connects straight to the mains. Bulb is ne-2, with mfg. recommended 150 ohm resistor. http://www.allspectrum.com/store/neon-lamp-ne-6x20-30mm-leads-p-145.html