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Old 10th January 2011, 02:38 PM   #11
Dr Zeus is offline Dr Zeus  United States
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I've got limited space and size to get the caps replaced. The closest thing I can find to a 106k100 (10uf 100v) in the same lead spacing and size is a 15uf 100v from Digi with part number 495-4103-ND. I need to replace both in the amp so would the 15uf be a problem? I tried finding 10uf in the right size even with a different voltage rating and there is nothing.

Is the 5 ohm resistor rated at 10w?

The inductor is another one i cannot find. I need it to be LxWxH, 30mm x 10mm x 20mm, with 27mm lead spacing. Im not sure what the value is of it; marked 685J160
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Old 12th January 2011, 01:34 PM   #12
Dr Zeus is offline Dr Zeus  United States
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Im not precisly sure what goes in all three of these locations.

I know a 10uF 100V cap goes into C515; but I only found Part Number 495-4103-ND at Digi which is a 15uF cap that will fit. Nothing else comes close with the same lead spacing.

Does the same go into C514? I dont know what came out because it looks like an over-burned marshmellow.

C516 had a 685J160 which looks and measures like a capacitor. I cant seem to figure out what this piece is though.

Can I just put 3x 15uF 100V caps into these spots?


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Old 12th January 2011, 03:20 PM   #13
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looks like a 5w resistor
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Old 12th January 2011, 03:23 PM   #14
Dr Zeus is offline Dr Zeus  United States
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Hey tubenut. The 5w5ohm resistor is R536 which I've got on the order.
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Old 12th January 2011, 04:57 PM   #15
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Digi-Key - EF2106-ND (Manufacturer - ECQ-E2106KF)

If you can't find caps to fit, you can use these caps (for the 106K...). Bend the leads as shown and goop them to the board. Digikey doesn't have the 6.8uf in this series but maybe you can find it in a different series.
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Old 13th January 2011, 01:51 PM   #16
Dr Zeus is offline Dr Zeus  United States
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What about 495-3537-ND for the 6.8uF? It is a little long but I should have enough room to glue it in place and get the leads where I want them to be.
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Old 13th January 2011, 01:58 PM   #17
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I can't think of any reason it wouldn't work. How about this:
DME2W6P8K-F Cornell Dubilier Polyester Film Capacitors
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Old 19th January 2011, 03:50 AM   #18
Dr Zeus is offline Dr Zeus  United States
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After installing a new resistor and three new caps, power up is stable. Unfortunately the speaker terminal outputs are not cooperating, and the amp is constantly outputing a medium volume 60hz frequency on top of whatever my frequency generator plays.

If I flip the "output polarity" switch from 'Normal' to 'Reversed' then the amp plays nothing - no 60hz and nothing from the frequency generator.
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Old 19th January 2011, 03:55 AM   #19
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Is the ground for the signal generator connected to the power supply ground?
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Old 19th January 2011, 03:58 AM   #20
Dr Zeus is offline Dr Zeus  United States
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It also only seems to be doing this when the RCA cables are attached.
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