Krell KST-100 Power Caps?

mcinerney · 5th February 2012, 11:55 AM

I own a KST-100 Krell amp. The power caps (Sprague Powerlytic 36DY 13000mf @ 63VDC) have dried out. I am having trouble finding the exact replacement - Fit and Function. I can find 15000mf or 12000mf but no 13000. What is best to replace with? The 63 volt ones are hard to come by, but the 13000 are even harder.
Should I be more concerned about the Voltage or the capacitance?
Can I use the 15000mf or do I need to find the 13000mf?
Any help is appreciated!
Thanks,

effebi · 5th February 2012, 07:24 PM

You should be concerned by the voltage, that must be >= than the originals. Higher voltage = safer, longer life.
For the capacity, given the tolerances of such components (10-20% or more) it won´t be a conrcern. I would go for the bigger, everithing else equal. Take in consideration also the temperature rate. Again, higher rate = longer life. A "known" (not necessararily audiophile) brand is also a decision element.
These considerations are absolutely general and not related specificallyy to your Krell

lanchile · 6th February 2012, 12:46 AM

if you have room...use two 6.800uf or just the 15.000uf as long as the voltage is the same or higher than the old one. Get the 105c

mcinerney · 6th February 2012, 02:43 AM

I understand Guys.
Thanks so much, The caps are mounted directly to the board so I will look for something with the correct Screw Terminal spacing.

5th February 2012, 11:55 AM	#1
mcinerney diyAudio Member Join Date: Jun 2010	Krell KST-100 Power Caps? I own a KST-100 Krell amp. The power caps (Sprague Powerlytic 36DY 13000mf @ 63VDC) have dried out. I am having trouble finding the exact replacement - Fit and Function. I can find 15000mf or 12000mf but no 13000. What is best to replace with? The 63 volt ones are hard to come by, but the 13000 are even harder. Should I be more concerned about the Voltage or the capacitance? Can I use the 15000mf or do I need to find the 13000mf? Any help is appreciated! Thanks,

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5th February 2012, 07:24 PM	#2
effebi diyAudio Member Join Date: Nov 2010 Location: Milan	You should be concerned by the voltage, that must be >= than the originals. Higher voltage = safer, longer life. For the capacity, given the tolerances of such components (10-20% or more) it won´t be a conrcern. I would go for the bigger, everithing else equal. Take in consideration also the temperature rate. Again, higher rate = longer life. A "known" (not necessararily audiophile) brand is also a decision element. These considerations are absolutely general and not related specificallyy to your Krell

6th February 2012, 12:46 AM	#3
lanchile diyAudio Member Join Date: Sep 2008	if you have room...use two 6.800uf or just the 15.000uf as long as the voltage is the same or higher than the old one. Get the 105c

6th February 2012, 02:43 AM	#4
mcinerney diyAudio Member Join Date: Jun 2010	I understand Guys. Thanks so much, The caps are mounted directly to the board so I will look for something with the correct Screw Terminal spacing.

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