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Old 5th April 2004, 04:53 PM   #1
jschen is offline jschen  United States
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Default PPI A404 Amp Repair

I bought this amp used and it was already damages and repaired once, of course the seller did not notify me of this. Anyways when I received it, it was damaged. One of the resistors was burnt and also one of the transistors was gone. I don't know what the original model number was but it was replaced with a NTE332 transistor. Does anyone know what transistors the PPI amps use? I have seen two model #s on the amp made by MCM

I don't have the amp sitting in front me at the moment but I believe the model numbers were:
2N6490 & 2N6487

If you guys need pictures to help I would be glad to take some and post them.

I have already ordered a new NTE332 transistor, and a few InOne transistors.

Any help would be great
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Old 5th April 2004, 07:55 PM   #2
speaker is offline speaker  United States
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Directed Electronics owns PPi now. Your first stop should be to get a schematic.

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Old 5th April 2004, 09:06 PM   #3
jschen is offline jschen  United States
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They don't give them out, but I think I have it figured out...just going to replace a couple of transistors.
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