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Blown Mosfet CDX20A
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<blockquote data-quote="volonau" data-source="post: 1975341" data-attributes="member: 562911"><p>The 105 and 236 are above the IRF9640 on the FET.</p><p></p><p>It looks to me like the amp had been opened and worked on so the 105 being newer</p><p></p><p>doesn't suprise me a bit.</p><p></p><p>Now why it would keep blowing is another matter. I have also tested the resistors connected to said FET and found at least one of them to be off spec.</p><p></p><p>I have installed two 1" fans on the side panels to help with the extra heat.</p><p></p><p>There were a few mica boards missing when I removed the board but I'm not sure if they were missing from the blown 105 or not.</p><p></p><p>I guess I will continue with the install as planned and hope for the best.</p><p></p><p>Is there any other product I can use in place of the mica boards that are missing?</p><p></p><p>I can't find any were I'm from.</p></blockquote><p></p>
[QUOTE="volonau, post: 1975341, member: 562911"] The 105 and 236 are above the IRF9640 on the FET. It looks to me like the amp had been opened and worked on so the 105 being newer doesn't suprise me a bit. Now why it would keep blowing is another matter. I have also tested the resistors connected to said FET and found at least one of them to be off spec. I have installed two 1" fans on the side panels to help with the extra heat. There were a few mica boards missing when I removed the board but I'm not sure if they were missing from the blown 105 or not. I guess I will continue with the install as planned and hope for the best. Is there any other product I can use in place of the mica boards that are missing? I can't find any were I'm from. [/QUOTE]
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