Over 500V rated electrolytics?

Zap · 16th February 2009, 10:22 PM

I'm helping a friend repair a vintage guitar amp and I noticed that 550V caps are called out on the schematic. Is there a good brand that is available at a supplier like Digi-Key or one of the tube-related houses? Almost if not all the parts I've found seem to top out at 500V.

Thanks!

kmaier · 16th February 2009, 10:30 PM

Sprague still lists an Atom electrolytic rated at 20uf@600VDC. Steve at Angela has them.

Regards, KM

Ty_Bower · 17th February 2009, 12:10 AM

Not cheap, but Mouser has these:

600V, 20uF
600V, 10uF
600V, 20uF

Do you have room in the chassis to series connect a pair of 300 volt rated caps? Don't forget the voltage balancing resistor in parallel with each cap.

16th February 2009, 10:22 PM	#1
Zap diyAudio Member Join Date: Jan 2006 Location: Milwaukee, WI	Over 500V rated electrolytics? I'm helping a friend repair a vintage guitar amp and I noticed that 550V caps are called out on the schematic. Is there a good brand that is available at a supplier like Digi-Key or one of the tube-related houses? Almost if not all the parts I've found seem to top out at 500V. Thanks!

16th February 2009, 10:30 PM	#2
kmaier diyAudio Member Join Date: Jul 2007	Sprague still lists an Atom electrolytic rated at 20uf@600VDC. Steve at Angela has them. Regards, KM __________________ ... just because you're paranoid, it doesn't mean they're not after you...

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17th February 2009, 12:10 AM	#3
Ty_Bower diyAudio Member Join Date: Mar 2007 Location: Newark, DE	Not cheap, but Mouser has these: 600V, 20uF 600V, 10uF 600V, 20uF Do you have room in the chassis to series connect a pair of 300 volt rated caps? Don't forget the voltage balancing resistor in parallel with each cap.

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