ampage Tube Amps / Music Electronics	For current discussions, please visit Music Electronics Forum.

ampage archive

Vintage threads from the first ten years

previous: Brett Re: Accaptable ripple voltage -- 1106870381

OK, my 2 cents

1/28/2005 7:20 AM
JWK	OK, my 2 cents 47uF is overdoing it IMO. You didn't mention your power supply voltage, but I'm guessing the main B+ is under 450v, no? Order some cheap 450V Xicon radials from Mouser. 10uF - $.49, 22uF -$.62, 33uF - $1.16. You won't need or want anything higher than 33uF and I doubt very much if you'll want that. So for a grand total of $2.27 you can find out just what you want/need in there. Replace later with a higher grade Nichicon or something-con if desired. This is what I plan on doing with my project and the very reason I'm trying to keep my main B+ below 450v. My filtering needs will be different than yours since it will be a P-P, UL design with a C-L-C input filter for two 6L6/EL34 tubes. Once you get over 450v, the cost is somewhere between 3 and 4 times as much, depending on what method you use. Makes for experimenting with different uF values expensive and a large pain. HTH John

1/28/2005 7:20 AM

JWK

OK, my 2 cents

47uF is overdoing it IMO. You didn't mention your power supply voltage, but I'm guessing the main B+ is under 450v, no? Order some cheap 450V Xicon radials from Mouser. 10uF - $.49, 22uF -$.62, 33uF - $1.16. You won't need or want anything higher than 33uF and I doubt very much if you'll want that. So for a grand total of $2.27 you can find out just what you want/need in there. Replace later with a higher grade Nichicon or something-con if desired.

This is what I plan on doing with my project and the very reason I'm trying to keep my main B+ below 450v. My filtering needs will be different than yours since it will be a P-P, UL design with a C-L-C input filter for two 6L6/EL34 tubes. Once you get over 450v, the cost is somewhere between 3 and 4 times as much, depending on what method you use. Makes for experimenting with different uF values expensive and a large pain. HTH

John