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Old 5th February 2011, 07:56 PM   #21
rknize is offline rknize  United States
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No...actually one could argue that a lossy cap is better here as it's series resistance will decrease the ripple current needed from the rectifier. If you want to use a motor run, put it in the C2 position. There it can do the most good, since it is closest to the audio path.
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Old 21st April 2015, 12:54 PM   #22
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Hi all!

I'dont have 47uF 500v capacitor but i found one 68uF 500v cap.
My question is can i replace C1 capacitor 47uF 500v with 68uF 500v ?

humax
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Old 21st April 2015, 01:58 PM   #23
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Quote:
Originally Posted by humax View Post
Hi all!

I'dont have 47uF 500v capacitor but i found one 68uF 500v cap.
My question is can i replace C1 capacitor 47uF 500v with 68uF 500v ?

humax
DO NOT go higher than 47uF for C1, you can go lower. If you cannot find a 47uF 500V cap then a 33uF or 39uF 500V cap will be a better value for C1.
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Old 21st April 2015, 04:44 PM   #24
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Originally Posted by spendorite View Post
DO NOT go higher than 47uF for C1, you can go lower. If you cannot find a 47uF 500V cap then a 33uF or 39uF 500V cap will be a better value for C1.
Ok thnx !

I get this one from ebay:
Click the image to open in full size.

Humax
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Old 21st April 2015, 05:18 PM   #25
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Be careful of getting parts like this on Ebay, especially from China.That doesn't look like a genuine Cornell Dubilier capacitor.
It's a safe bet that it is a fake Chinese knockoff.
Genuine Cornell Dubilier capacitors usually have have a band down the side indicating the negative terminal not a dashed line.
They are made in China and are usually marked CDE USA not Made in USA.
You should source parts like this from reputable dealers. Get things like speaker and RCA jacks, tube sockets and similar
hardware from Ebay China sellers.
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Old 21st April 2015, 06:00 PM   #26
zman01 is online now zman01  Bangladesh
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+1 to Spendorite has mentioned. Lower than 47uf should be fine. IIRC George mentioned that 22uf-47uf should be ok for C1. Please refer to Note 4 on this page:

http://tubelab.com/designs/tubelab-sse/parts-list/

If you are in the US you can check out:

https://www.tubedepot.com/t/brands/f...er-and-tausche

Last edited by zman01; 21st April 2015 at 06:03 PM.
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Old 22nd April 2015, 12:51 AM   #27
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Quote:
Originally Posted by spendorite View Post
Be careful of getting parts like this on Ebay, especially from China.That doesn't look like a genuine Cornell Dubilier capacitor.
It's a safe bet that it is a fake Chinese knockoff.
Genuine Cornell Dubilier capacitors usually have have a band down the side indicating the negative terminal not a dashed line.
They are made in China and are usually marked CDE USA not Made in USA.
You should source parts like this from reputable dealers. Get things like speaker and RCA jacks, tube sockets and similar
hardware from Ebay China sellers.
I agree about buying components from the bay and China, too many fakes out there.
Here's the real thing from Mouser... There is a difference. I used a 33mfd instead of a 47mfd...

Click the image to open in full size.

Last edited by denny3249; 22nd April 2015 at 01:02 AM. Reason: CRS
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