DIYbanter - View Single Post - Where to find a few 120V indicator indicator lights?

On Thu, 20 Apr 2006 11:14:59 GMT,
ess (Eric Sears) wrote:

John - many thanks for your post! I have a power supply with a neon
that is so dim I can hardly see it in daylight. I had assumed the neon
was faulty.

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Your assumption was correct.
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Changing the resistor will be much easier (provided I can
read its value). But I guess I could just experiment starting with
high values until it glows ok!

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Unfortunately, by doing that you'll be needing to replace resistors
with higher and higher wattage units more and more often as the neon
lamp races, ever faster, to its final reward.
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At least once I get it apart, I can replace the neon if needed.

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That'll be de rigueur, since when neon lamps fail their "ballast"
resistors, as a rule, don't.
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To Ted - sorry I am in NZ.

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I can't imagine why, I've heard that NZ is paradise... :-)

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John Fields
Professional Circuit Designer