3bf5bb43   
   From: rh@8600.edu   
      
   In article <1fd54b5f-74ce-4053-9fe9-2fa0c0cfcbc2@f31g2000pri.googlegroups.com>,   
   Patrick Turner   wrote:   
   >On Jun 12, 1:13 pm, r...@8600.edu (Rockinghorse Winner) wrote:   
   >> I have a set of 6550 tubes in a music amp that I want to replace - 4 6550   
   >> tubes.  Can I replace them with ANY 6550 OR KT88's?  I kind of gathered from   
   >> the forums I've checked that I can, but I want to be certain.   
   >>   
   >> Also, I'm thinking of getting either the Tung Sol 6550 or the   
   >> Electro-Harmonix KT88 to replace the current EH 6550's. Are these good   
   >> choices? Also, what do you think of the Svetlana 6550's - are these OK?   
   >   
   >If the anode supply is under 500Vdc, usually any 6550 or KT88 are OK   
   >to plug in without any modification. I have found that the Ra, gm and   
   >µ of the The EH KT88 and EH 6550 are exactly the same and the   
   >internals look the same. I am not sure if "winged C" genuine Svetlana   
   >6550 are better sounding than other 6550 or KT88.   
   >Ppl argue about the sound and they all cannot be right.   
   >   
   >Patrick Turner.   
      
   Thanks!   
      
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