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Re: Neon life (and death)
From: DR.RESONANCE[SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Wednesday, October 29, 1997 9:57 PM
To: Tesla List
Subject: Re: Neon life (and death)
to: Greg
Try an air-core choke in series with a 1K, 25 watt resistor. Digi-Key has
them (vitreous enamel) in 25, 50, and 100 watt ratings. Calculate the
voltage drop across the resistor x the average current thru it to determine
the wattage ratings. We have used some 2K 100 watt units in parallel to
operate with pole pigs at 5 kva. For higher powers we use some iconel
resistance wire to wind our own 20 Ohm, 10 KW resistors. It usually only
takes 10 to 100 Ohms of resistance to "spoil the Q factor" enough to dampen
any high potential transients of high freq nature.
Hope this helps out.
DR.RESONANCE-at-next-wave-dot-net
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-poodle.pupman-dot-com>
> Subject: Re: Neon life (and death)
> Date: Wednesday,October 29,1997 7:18 PM
>
>
> From: ghunter-at-mail.enterprise-dot-net[SMTP:ghunter-at-mail.enterprise-dot-net]
> Sent: Wednesday, October 29, 1997 3:20 PM
> To: tesla-at-pupman-dot-com
> Subject: Neon life (and death)
>
> What's the typical lifespan of a neon TC power supply? One
> subscriber to the list has suggested that a pile of used neon
> transformers is good to have around, because they don't last very
> long. I find this most disturbing, as I own only ONE neon
> transformer, and it wasn't free. I've seen working luminous sign
> transformers in downtown New Orleans that appear to have been on
> continuous duty for decades. Obviously, neons are built to last. So
> why would a TC shorten the life of a neon so drastically? I'm aware
> of the need for output chokes, and mine will be protected with four
> (4) robust, home-made units (2 big air-cores, and 2 fat ferrite
> cores). I'm also including a safety gap. What more can I do?
> Series power resistors maybe?
>
> Greg
>
>
>
>