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From: Sparkey on 22 Jan 2010 13:02
Hi

I'd like to replace the power supply for a window sized neon sign.

On the outside of the unit I'd like to replace, it says "output 6.5KV
" @ 30ma

I found a power supply on line with the same sized box and same part #
( Me-120-9000-30 ) but this one has an output of 9KV (so it says)

Does anyone know if there's wiggle room in the voltage specs for these
neon signs or do I need to stick with the exact numbers given.

I don't know if the neon will be "forgiving" of the 9KV or will I
launch this thing into the stratosphere ?

Thanks, as always,

Spark
From: PeterD on 22 Jan 2010 14:15
On Fri, 22 Jan 2010 10:02:49 -0800 (PST), Sparkey <wwspage(a)aol.com>
wrote:

> Hi
>
> I'd like to replace the power supply for a window sized neon sign.
>
>On the outside of the unit I'd like to replace, it says "output 6.5KV
>" @ 30ma

Outside of the unit, or the powersupply (or is the power supply
'bare'?)

>
>I found a power supply on line with the same sized box and same part #
>( Me-120-9000-30 ) but this one has an output of 9KV (so it says)
>

I find it odd that the same part number from the same maker has two
different ratings. Same maker, right? Look at that number, it is more
specifications than an arbitrary number. 120 (input voltage) 9000
(output voltage) 30 (milliamp). Also do they both look the same or
not?

>Does anyone know if there's wiggle room in the voltage specs for these
>neon signs or do I need to stick with the exact numbers given.


>
>I don't know if the neon will be "forgiving" of the 9KV or will I
>launch this thing into the stratosphere ?

Just in case, setup a good video camera. If nothing else, great
you-tube entertainment! <bg>

>
>Thanks, as always,
>
>Spark
From: Samuel M. Goldwasser on 22 Jan 2010 16:39
Sparkey <wwspage(a)aol.com> writes:

> Hi
>
> I'd like to replace the power supply for a window sized neon sign.
>
> On the outside of the unit I'd like to replace, it says "output 6.5KV
> " @ 30ma
>
> I found a power supply on line with the same sized box and same part #
> ( Me-120-9000-30 ) but this one has an output of 9KV (so it says)
>
> Does anyone know if there's wiggle room in the voltage specs for these
> neon signs or do I need to stick with the exact numbers given.
>
> I don't know if the neon will be "forgiving" of the 9KV or will I
> launch this thing into the stratosphere ?

Neon sign transformers are supposed to be constant current devices, so they
will adapt to how many feet and how much voltage the neon sign requires,
but still provide the same current (30 mA in this case).

So I would think it should be OK.

Any of the neon sign Web sites should be able to tell you about how much
voltage is required for a given number of feet of a particular type sign.

--
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