Crunch PZI3000.1D Gate Resistors - diyAudio
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Old 8th April 2009, 10:18 PM   #1
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Join Date: May 2006
Default Crunch PZI3000.1D Gate Resistors

Got a Crunch PZI3000.1D amplifier with a blown power supply. DFP 70N06 FETs are blown (thankfully a couple still "look" good and was able to read the part number) and all 8 of the gate resistors are totally toast...which appears to be a good thing as the driver circuit still appears to be good (haven't done too much testing yet).

Problem is I can't tell what the gate resistors are supposed to be as they are fully burnt up....not much left to them. Guessing 10 ohms? Not sure though...
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Old 8th April 2009, 10:39 PM   #2
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If the power supply is the same basic design as the PZI1500.1, the resistors are likely 47 ohms. The RFP70N06 should be a good sub for the DFP transistors.

http://uecnue.98.unite.net.cn/Member...4154559889.pdf

http://www.fairchildsemi.com/ds/RF/RFP70N06.pdf
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