[_] (OT) Basic electronics
Jim Fanning
jim at sugarmouse.com
Fri Aug 11 13:36:34 BST 2006
> -----Original Message-----
> From: underscore-bounces at under-score.org.uk
> [mailto:underscore-bounces at under-score.org.uk]On Behalf Of Oliver
> Humpage
> Sent: 11 August 2006 13:08
> To: underscore at under-score.org.uk
> Subject: [_] (OT) Basic electronics
>
>
>
> A small question to aid me in my hobbying...
>
> Did anyone do some basic electronics at school/uni?
>
> I've got a 25W, 240V AC halogen bulb (G9 fitting, although that's not
> important apart from the fact it's impossible to get a basic holder for it
> that's not part of a fancy light) that I'm using as part of a model I'm
> building, and the fact that it's 240V AC suggested to me I could just wire
> it straight up to the mains. However, when I did so, it shone for about a
> second before blowing.
>
> It's been suggested that I need to put a resistor in series with it, to
> limit the power flow to 25W? If that's right, how big a resistor
> do I need?
> Or did I just get a duff bulb?
>
> Thanks _ brain,
>
> Oliver.
Mike's right s'probably a 12 or 24 volt bulb.
Jim