Posted: 9/11/2012 11:16:43 AM EDT
The device needs a 4.7k 1/2 watt resistor. I gave out a 4.7k 1/2 watt resistor. It didn't work and I got this picture back. Top one is the one that needs to be replaced. What's with the mystery band? Why won't the bottom one work in place of the top one?
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The device needs a 4.7k 1/2 watt resistor. I gave out a 4.7k 1/2 watt resistor. It didn't work and I got this picture back. Top one is the one that needs to be replaced. What's with the mystery band? Why won't the bottom one work in place of the top one? http://i961.photobucket.com/albums/ae95/chickenspigscows/photo-26.jpg The resistor is not the problem. Resistors rarely give up the ghost. Cold solder joint elsewhere, or a capacitor, or semi conductor is the culprit. |
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Quoted: The device needs a 4.7k 1/2 watt resistor. I gave out a 4.7k 1/2 watt resistor. It didn't work and I got this picture back. Top one is the one that needs to be replaced. What's with the mystery band? Why won't the bottom one work in place of the top one? http://i961.photobucket.com/albums/ae95/chickenspigscows/photo-26.jpg The resistor is not the problem. Resistors rarely give up the ghost. Cold solder joint elsewhere, or a capacitor, or semi conductor is the culprit. This What did the resistor measure on your multimeter? |
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The device needs a 4.7k 1/2 watt resistor. I gave out a 4.7k 1/2 watt resistor. It didn't work and I got this picture back. Top one is the one that needs to be replaced. What's with the mystery band? Why won't the bottom one work in place of the top one? http://i961.photobucket.com/albums/ae95/chickenspigscows/photo-26.jpg The resistor is not the problem. Resistors rarely give up the ghost. Cold solder joint elsewhere, or a capacitor, or semi conductor is the culprit. This What did the resistor measure on your multimeter? Both measure 4.7k. Top one satisfies circuit, bottom one does not |
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The device needs a 4.7k 1/2 watt resistor. I gave out a 4.7k 1/2 watt resistor. It didn't work and I got this picture back. Top one is the one that needs to be replaced. What's with the mystery band? Why won't the bottom one work in place of the top one? http://i961.photobucket.com/albums/ae95/chickenspigscows/photo-26.jpg The resistor is not the problem. Resistors rarely give up the ghost. Cold solder joint elsewhere, or a capacitor, or semi conductor is the culprit. This What did the resistor measure on your multimeter? Both measure 4.7k. Top one satisfies circuit, bottom one does not Are they both the same tolerance % ? Is bottom REALLY a 1/2 watter? |
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The calc says it's 47.2k
Try this. http://www.1728.org/resisclr.htm |
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They're not the same at all. Different band systems. One is based on a 4 band system and the other is based on the 5 band system. One is 4700 ohms and the other is 47200 ohms. Big difference!
Helpful Link |
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The top resistor looks to have the 4-band color code as was mentioned. The bands put it 47K.
Now, if indeed they both measured the same before and after failing, then something else is hinky in the circuitry. High voltage drop causing a breakdown or high current causing excess power dissipation, etc. As to why the new resistor will not work? Something else is now amiss and you or your customer really needed the 47K device to start with. |
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Quoted: Quoted: Bad Boys Rape Our Young Girls But Virgins [violet]Violet[/violet] Gives Willingly Get Some Now ...that's all I remember; I'll let the real geeks help you out  Speed FIFY Whats funny is I remembered it as virgins, I googled it for a quick copypasta which I noticed said violet, then I edited it God help me if I ever have to do any real electronics work  Speed |