It blows resistors?

Posted by Lew (A) on December 20, 2014 at 07:18:28

In Reply to: RE: What kind posted by jupiterboy on December 19, 2014 at 15:41:20:

If so, is that the current problem, a blown resistor? If this is happening repeatedly, and if it's happening in the same part of the circuit, then an upgrade in the wattage rating of the resistor(s) that blow is warranted. Did he do something to increase voltage or current? You might take a voltmeter and measure VDC across the resistor(s) that blow, once the unit has been repaired. Then you can calculate the current; it is equal to the measured VDC divided by the value of the resistor. Then you can calculate wattage, equal to the same VDC measurement multiplied by the current. If the Watts are near to or above the wattage rating of the resistor in question, you need to replace that resistor with one of higher wattage rating. Some resistors are very sensitive to high voltages, even when their wattage rating is not exceeded; that's another possible issue. But you should not have to put up with that kind of recurring problem; it's curable.

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Follow Ups Full Thread

Topic - So the phon pre dies again, right before holiday listening. - jupiterboy 07:06:45 12/19/14 (13)

RE: So the phon pre dies again, right before holiday listening. - flood2 17:47:50 12/20/14 (0)

What kind - unclestu 13:38:01 12/19/14 (4)

RE: What kind - jupiterboy 13:46:42 12/19/14 (3)

RE: What kind - unclestu 14:44:13 12/19/14 (2)

RE: What kind - jupiterboy 15:41:20 12/19/14 (1)

It blows resistors? - Lew 07:18:28 12/20/14 (0)

RE: So the phon pre dies again, right before holiday listening. - John Elison 12:34:51 12/19/14 (1)

RE: So the phon pre dies again, right before holiday listening. - jupiterboy 12:46:53 12/19/14 (0)

RE: So the phon pre dies again, right before holiday listening. - Lew 08:39:10 12/19/14 (4)

RE: So the phon pre dies again, right before holiday listening. - DrN 15:35:36 12/19/14 (0)

RE: So the phon pre dies again, right before holiday listening. - jupiterboy 09:14:27 12/19/14 (2)

RE: So the phon pre dies again, right before holiday listening. - Lew 09:25:53 12/19/14 (1)

RE: Boozehound - amioutaline? 11:37:09 12/19/14 (0)

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It blows resistors? - Lew 07:18:28 12/20/14 (0)

It blows resistors?

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