Hey all,
My projector lamp recently died after a few years. I had a good idea to use high-powered LED's in place of the $250+ lamp replacement. However, there is a problem at hand in doing that.
The projector will not operate if it detects no bulb connected. A friend of mine and i have figured out the resistance of the bulb itself:
165W / 220V = 0.75
220 / 0.75 = 293.333333
So i am looking for a Ohm value of 293. I just wanted to make sure what i am getting is what will be needed. Here is the local Radio Shake parts list that i think i will need:
- 1 x 270 ohm 1/2W 5% Carbon Film Resistor(270 ohm 1/2W 5% Carbon Film Resistor pk/5 - RadioShack.com)
- 2 x 10 Ohm, 1/2W 5% Carbon Film Resistor(10 Ohm, 1/2W 5% Carbon Film Resistor (5-Pack) - RadioShack.com)
Now how would i make the last 3ohms? I can not find any 1ohm on radio shakes site. The lowest being 10ohms.
Any help would be great!
David
My projector lamp recently died after a few years. I had a good idea to use high-powered LED's in place of the $250+ lamp replacement. However, there is a problem at hand in doing that.
The projector will not operate if it detects no bulb connected. A friend of mine and i have figured out the resistance of the bulb itself:
165W / 220V = 0.75
220 / 0.75 = 293.333333
So i am looking for a Ohm value of 293. I just wanted to make sure what i am getting is what will be needed. Here is the local Radio Shake parts list that i think i will need:
- 1 x 270 ohm 1/2W 5% Carbon Film Resistor(270 ohm 1/2W 5% Carbon Film Resistor pk/5 - RadioShack.com)
- 2 x 10 Ohm, 1/2W 5% Carbon Film Resistor(10 Ohm, 1/2W 5% Carbon Film Resistor (5-Pack) - RadioShack.com)
Now how would i make the last 3ohms? I can not find any 1ohm on radio shakes site. The lowest being 10ohms.
Any help would be great!
David