From: Lizard Blizzard
Subject: Re: neon lamp query
Date: Wed, 18 Sep 2002 07:14:20 -0700
X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U)
> I have a query about neon lamps; in particular, those little bulb neons we
> use as indicators that the mains electricity supply is on.
> I have a collection of these things and I want to use one as a mains
> indicator on a prototype project. I need to use a dropper resistor, but what
> size? This is a heterogeneous collection of neons and they may well have
> quite different striking voltages. I can pick one and find its approximate
> strike voltage using a charged-up 400V capacitor and a very large dropping
> resistor. But to calculate the final dropping-resistor size, I need to know
> the size of the continuous current that these things are expected to operate
> on; is it about 1mA or nearer 50?
> How much is too much?
> Please email any answers
Typical is 47k, and I wouldn't use less than 22k because the resistor
dissipates most of the power. Use a half watt resistor. BTW, it's
considered rude to ask for email. If you can't take the time to check
the newsgroup for replies, then we don't have the time to reply.
> Regards Bruce
----------------(from OED Mini-Dictionary)-----------------
PUNCTUATION - Apostrophe
Incorrect uses: (i) the apostrophe must not be used with a plural
where there is no possessive sense, as in ~tea's are served here~;
(ii) there is no such word as ~her's, our's, their's, your's~.
Confusions: it's = it is or it has (not 'belonging to it'); correct
uses are ~it's here~ (= it is here); ~it's gone~ (= it has gone);
but ~the dog wagged its tail~ (no apostrophe).
----------------(For the Apostrophe challenged)----------------
From a fully deputized officer of the Apostrophe Police!