Wirewound Power
2008
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 PBR 4035 60A P G Wirewound 928 watt power Resistor $95.00 Time Remaining: 29d 3h 40m Buy It Now for only: $95.00 |
 5 DALE WISHAY RH 25 25W WIREWOUND RESISTOR POWER1274 $20.00 Time Remaining: 19d 18h 59m Buy It Now for only: $20.00 |
 OHMITE BROWN DEVIL POWER WIREWOUND RESISTORS 1541 15 $27.00 Time Remaining: 17d 12h 59m Buy It Now for only: $27.00 |
Wirewound Power
Running a small 4W fluorescent tube from a resistor?
I've heard that this is possible, but resistors aren't used for most fluorescent lights as they consume almost as much power as the lamp it's self. I live in the uk where the line voltage is about 240V and I was thinking of using a 10 Watt wirewound resistor but i'm not sure how many ohms it needs to be to run a small 4w fluorescent lamp. The rest of the fluorescent lamp would be the same as if i was using a normal ballast and i'l be using a starter too.
The resistors would be comming from Maplin Electronics, there range of 10w wirewound resistors is here: http://www.maplin.co.uk/module.aspx?moduleno=2181
You may have better results using a small transformer with the primary in series with the tube. You can control the current by loading the secondary. The inductance of the primary with an open secondary will act same as a ballast. current limit, The load on the secondary will allow current in the primary. A small transformer like electronic gadgets and toys should work. make sure it is a transformer, some are electronic switches. a transformer will be heavier because of the iron and copper.
Dogsaver Starship Coil
