[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Primary dummy-loading
Original poster: "brian by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ka1bbg1-at-mcttelecom-dot-com>
Gary, i have 120 volt 500 watt light bulbs here if you need any. i bot them
at an auction years ago and the last for a long time. i also have sockets
for them. cul brian
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
Sent: Monday, May 07, 2001 6:59 PM
Subject: RE: Primary dummy-loading
> Original poster: "R.E.Burnett by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> Hi Gary,
> > The 120V/500W lamps each have a 29 Ohm hot-resistance, or 58 Ohms for
> > two. So, at least they're in the ballpark. I could add a 3rd series
> > lamp...
> My lamps were 240V devices. 1kW 500mm long, and I have used up to 5 in
> series when dumping 3-4kW. Your 2x 120V/500W lamps are probably getting
> hit pretty hard, so another one or two in series would reduce the peak
> current. However it amazed me how these lamps seem to take this extreme
> treatment in their stride !
> If you plan to do a lot of work with this setup, and find the brilliant
> light distracting, you can get these halogen lamps with a "Ruby" glass
> sleeve. They are used for Infra Red space-heating, paint-curing etc..
> The sleeve takes out like 90% of the visible light, leaving only the IR
> to heat your garage ;-) They do get exceedingly hot though.
> Here's a picture of what they look like, (in case you know a mate in the
> respray business ;-)