Radio Road

Posted by wjcorbin (A) on February 05, 2007 at 07:56:44

Hi Folks,
Just got a FM-100-B and was looking for a source for a replacement to the 40 uF/40 uF/40 uF/40 uF (250 VDC on all sections) Quad filter cap. I searched various sources on the net, but have not found comparable replacement in a can cap. Does anyone know of a replacement source for this?

Thanks,
Bill

• Re: Fisher FM-100-B Quad cap replacement - Ron Oehlert 15:56:26 02/05/07 (0)
  In Reply to: Fisher FM-100-B Quad cap replacement posted by wjcorbin on February 5, 2007 at 07:56:44:

  Just use four individual capacitors as replacement.
  
  

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• Here's a good German source - 4season 11:33:26 02/05/07 (0)
  In Reply to: Fisher FM-100-B Quad cap replacement posted by wjcorbin on February 5, 2007 at 07:56:44:

  By Murphy's Law, when you need a specific value, it will be temporarily out of production, so usually I get the next closest thing and add extra capacitance as needed, say a 20-20-40-40 plus a couple of added 22 uf axial lead caps to make up the difference. If clearance is an issue, make sure replacement part isn't too tall!

  This is a good source in Germany:

  http://askjanfirst.com/eindex.htm

  Click on "New series: Authenticap Twistlock-FP-Electrolytics for US-amplifiers, fit directly into existing amps, one to four sections."

  Replies promptly to English-language inquiries, and I had my parts from Germany faster than with some USA suppliers.

  Haven't tried these folks, but they offer custom sizes too:
  http://vibroworld.com/parts/tech15.html#cans
  

  • http://askjanfirst.com/eindex.htm   (Open in New Window)

  
  

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• Here you go.... - doodlebug 10:09:52 02/05/07 (0)
  In Reply to: Fisher FM-100-B Quad cap replacement posted by wjcorbin on February 5, 2007 at 07:56:44:

  Here's the one I came up with from Antique Radio Supply - aka: www.tubesandmore.com. Check their part number C-EC50X4-350. slightly higher capacitance and voltage but that's ok.

  Also watch the can's height if you intend to use a cabinet. This is sometimes a problem with old Mac gear.

  Cheers,

  David
  

  • AES   (Open in New Window)

  
  

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