[Amps] 2 x 4-250A Amp

[Hsu]

Sorry, Peter,
  It is QB3.5/750, not TB3.5/750,I make a mistake.Its datasheet was here:
http://www.g8wrb.org/data/Philips/QB3.5-750.pdf..
 TL922's output power is 1kW, I think in this level the anode disspation will no morethan
600W( 2x4-250), if it runs ICAS, will be too much.I think the big problem is you have 
mentioned  the gain, Maybe have match problem.
    73! Hsu
  
  From: Peter Chadwick 
  To: Hsu ; g3rzp at g3rzp.wanadoo.co.uk 
  Cc: amps at contesting.com 
  Sent: Monday, December 18, 2006 2:08 PM
  Subject: RE: *** SPAM *** Re: [Amps] 2 x 4-250A Amp


  Hsu,

  >I have a pair Mulard TB3.5/750( 4-250A), <

  As far as I am aware, all the 'T' series numbers from Mullard and Philips are triodes. I can't find a data sheet for TB3.5/750: there is a TB3/750, which is medium mu triode (mu =25).

  Using 4-250 instead of 3-500Z means exceeding the plate dissipation for the same maximum power output: the gain may well be different, though.

  73

  Peter G3RZP