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16th May 2011, 04:41 PM
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#1 |
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diyAudio Member
Join Date: Jan 2011
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PPI
looking for some fets 125n06 motorola looks like a pretty standard fet 75v 55a but the resistance is very high anyone know where to get some I have 2 amps to repair that require the same fets or a good replacement
Last edited by joesch1999; 16th May 2011 at 05:00 PM. |
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16th May 2011, 08:05 PM
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#2 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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What's the prefix?
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16th May 2011, 09:34 PM
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#3 |
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diyAudio Member
Join Date: Jan 2011
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I don't know to be honest does not have one on the fet.
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16th May 2011, 09:37 PM
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#4 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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Does it have a logo or anything else on the face of the FET?
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16th May 2011, 09:45 PM
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#5 |
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diyAudio Member
Join Date: Jan 2011
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its motorola(M) P (M) P
125n06 R141 Thats what is on the fet |
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16th May 2011, 10:02 PM
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#6 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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Generally, on Motorola FETs, the part number indicates the basic specs. The 125N06 would be an N-channel, 60v, 125 amp FET but I can't find anything like that.
What model amp is it in? Do they appear to be the original parts?
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17th May 2011, 03:32 AM
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#7 |
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diyAudio Member
Join Date: Jan 2011
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yeah they are original PPI-2075AM
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17th May 2011, 05:41 AM
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#8 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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What is the value of the gate resistors?
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17th May 2011, 07:40 AM
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#9 |
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diyAudio Member
Join Date: Jan 2011
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460 ohms or .460 k
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17th May 2011, 12:03 PM
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#10 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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I think those are more likely to be 25N06s than 125N06s (rated for 25 amps vs 125 amps).
I'd suggest using something like the IRFZ44 with 100 ohm gate resistors. The 470 ohms gate resistors will need to be replaced for virtually any FET that you're likely to use.
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