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AN Kit One Power Supply 47uf 400V upgrade?

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Dear all,

I am planning to change 47uf400V Caps(nichichon)on PSU with Mundorf 47uF600V MTubeCap (polypropylene).What is your advise?

Thanks
Gokhan

Follow Ups:

RE: AN Kit One Power Supply 47uf 400V upgrade? - xaudiomanx 05:37:12 09/13/13 (0)
DO IT! If you can change any other power supply caps to film do them as well.
RE: AN Kit One Power Supply 47uf 400V upgrade? - gokhan@ozenir.com 14:03:48 09/12/13 (7)
No one any idea? Help please.
- RE: AN Kit One Power Supply 47uf 400V upgrade? - GTCharlie 04:02:55 09/13/13 (6)
  Hi... The Mundorf film/foil will likely do a better job of smoothing your PS. But final decision up to you.
  
  However, do you have enough space? the Nichicons are lytics and generally smaller than the Mundorfs, assuming the same capacitance and voltage ratings.
  
  Great projecct for the weekend.
  - RE: AN Kit One Power Supply 47uf 400V upgrade? - gokhan@ozenir.com 04:23:34 09/13/13 (5)
    Yes,I have enough space.
    
    Thanks
    Gokhan
    - RE: AN Kit One Power Supply 47uf 400V upgrade? - GTCharlie 17:16:06 09/13/13 (4)
      just a thought : you might want to explore those "oil cans" from GE, ASC, Mallory, etc... much cheaper than the Mundorf. their 370VAC oil cans should suffice.
      
      caution : if you're using valve rectifier, be conservative on your first cap. load the additional capacitance AFTER the choke (final cap) just before B+ goes to the OPT
      
      enjoy the weekend.
      - RE: AN Kit One Power Supply 47uf 400V upgrade? - gokhan@ozenir.com 03:47:21 09/16/13 (3)
        
        In Reply to: RE: AN Kit One Power Supply 47uf 400V upgrade? posted by GTCharlie on September 13, 2013 at 17:16:06
        
        Hi all,
        I will replace fallowing caps on PSU,
        
        220uf450V electrolytic------> 220uF700V ClarityCap TC Range polypropylene
        100uF450V electrolytic------> 100uF550V Mundorf TubeCap polypropylene
        10uF160V electrolytıc-------> 10uF700V ClarityCap TC Range polypropylene
        
        Any advice ?
        
        Thanks
        Gokhan
        
        RE: AN Kit One Power Supply 47uf 400V upgrade? - Vincin 06:04:33 09/20/13 (2)
        
        In Reply to: RE: AN Kit One Power Supply 47uf 400V upgrade? posted by gokhan@ozenir.com on September 16, 2013 at 03:47:21
        
        Check space available before ordering.
        
        For cap after rectififer,: use a single Clarity film cap any where from 10uf to 33uf
        
        The main B+ cap: use a single 100uf or two 45uf Clarity film caps in parrallel
        
        Use 33uf or 45uf film caps for each RC filters feeding the 6sn7 and 5687 stage
        
        The 10uf 160v cap on the PS does nothing to the sound. Dont bother with it.
        
        One word of advice, you are looking at fitting 6-7 caps underneath the chassis in non-optimal positions with all the messy wiring.... I would not do it.
        
        If you are a real fiddler, you could try to different 300b filament heating methods. Many has agreed on various forums that this is one area a 300b amplifier can be improved the most. Do some research.
        
        RE: AN Kit One Power Supply 47uf 400V upgrade? - gokhan@ozenir.com 03:44:24 09/25/13 (1)
        
        In Reply to: RE: AN Kit One Power Supply 47uf 400V upgrade? posted by Vincin on September 20, 2013 at 06:04:33
        
        Dear Vincen,
        
        What does it mean ''caps underneath the chassis in NON OPTIMAL positions with all the messy wiring''
        
        Thanks
        Gokhan
        
        RE: AN Kit One Power Supply 47uf 400V upgrade? - Bones13 07:18:14 09/30/13 (0)
        
        In Reply to: RE: AN Kit One Power Supply 47uf 400V upgrade? posted by gokhan@ozenir.com on September 25, 2013 at 03:44:24
        
        The caps he mentioned are all much larger, physically, than the originals, and won't fit on the circuit boards. These larger caps get mounted away from the original location, and have extra wires connecting them up to the circuit boards.
        
        Hence the comment.

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