Re: [Amps] 2 x 4-250A Amp

["Hsu" <Jbenson@sohu.com>]

Hi, I just rebuilt a junk TL922, I use a pair Chinese FU500F( same as 4x500A) 
replace the 3-500Z( worked in GG service) , all grids are grounded
  I replace the origional fan with a noisy AADA fan , but the tubes still over 
heat,I add a odditional heat sink on anode, it seems OK now.But the fan is too 
noisy. I have a pair Mulard TB3.5/750( 4-250A), maybe I can replace 4X500A use 
them, Any gus have this experments?
       73!Hsu
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