Most pull chain switches - as used on neon signs -- are the old style, single pole single throw, ratchet/rotary action switches. Some with multiple brightness levels or flashing action have a slightly more sophisticated switch, multiple poles, but still are only single throw. I'm not sure how the bleeder resistor is accomplished with those style switches... certainly they are not rated for the HV levels present on the outputs. And the bleeder resistor can't always be in place because the wattage rating required would make the size enormous. Yet there must be a mechanism triggered by the switch that drops in the bleeder, or clamps the HV electronically.
Next time I encounter a failed neon supply, I'll dissect it for clues. Terry On Monday, May 1, 2017 at 9:18:33 AM UTC-5, philthepill wrote: > > I always build high voltage devices with a double pole double throw switch > so that one pole controls power while the other pole puts a 10 K resistor > across the HV supply to bleed it off when device is turned off. Never > been buzzed this way. > > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/374b7a4e-3c23-41ca-9e25-40aa62523d75%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
