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Re: Caps for my K200 B5 Buzz problem [message #8812 is a reply to message #8808] |
Mon, 13 August 2007 12:11 |
chicagobill
Messages: 2006 Registered: April 2003
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Senior Member |
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Welcome to the board.
Yes, replacing the filter caps would be a good place to start. One problem that you will find is that most modern caps are much smaller in size than the old ones, making mounting them a little tricky.
Use the 4500mf 50v rating as a starting point. Think of these values as the minimum ratings for your replacements. Modern values would be 4700mf 50v. Some guys here on the board, replace their caps with values as high as 10,000mf.
The point to remember is that these caps are polarized and must be installed with the correct polarity. So when you remove the old caps, be sure to match the new ones + to +, and - to -.
Bill
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Re: Caps for my K200 B5 Buzz problem [message #8813 is a reply to message #8812] |
Mon, 13 August 2007 13:08 |
C4ster
Messages: 686 Registered: June 2001 Location: Mukwonago, WI (Milwaukee...
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Senior Member |
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Actually, I replace the caps in K100's with 10,000 mfd units and the originals are 2500 mfd. By that rule of thumb, 18,000 to 20,000 mfd should work. The only possible problem I would see is the fuse may need to be slightly larger but at least a slow blow instead of a fast blow fuse. OK maybe 20,000 is pushing it but the net result is a bit more headroom before distortion occurs. The larger caps will allow more power before the voltage starts to drop thus limiting your power output. This will NOT give you more power, just more power before distortion. You can see this by watching the light on the front of the unit. Yes, that nice purple light!! You will see it dim as you push the amp hard. It also will be noticably longer when you shut down. The hissing will hang on a lot longer.
Conrad
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