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Help identifying an OT (possibly Dukane?)

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  • Help identifying an OT (possibly Dukane?)

    Hi folks,
    Been a while....
    I'm gathering parts to put together a push pull 6l6 amp and ran across a nice heavy piece of OT iron at a hamfest a while back. The guy said it was from a Dukane 1a435 and that he had picked it up in his travels and might be 50W. Other than that, he couldn't tell me much about it. It is nice and clean and doesn't smell burnt or anything, so I threw the 30 bucks he was asking and went on my merry way.
    The numbers on it are TT1-2680 and 710-2052-01. They don't seem to match up with anything I can find.
    Anyone know or can point me in a direction?

    Thank you,
    Alan

  • #2
    purchase the sam's photofact service manual, sometimes on e bay, and that's the most info your going to find. but it does have pictures, parts list, schematic...hopefully the original part numbers.
    Other than that, there's tons of transformers that will run a pair of 6L6, that you can drop in, provided you set the bias correctly.
    The info to ID that transformer is extinct, basically.

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    • #3
      I have attached the few Dukane schematics that I have.
      (compliments go to Triode Electronics)
      The 1A435 circuit is nearly exactly the same as that of the 1A475 except for using 2x 6CD6 output tubes.
      (Horizontal deflection tube)
      (plate resistance is 7200 ohms)
      Link: http://www.mif.pg.gda.pl/homepages/f...3/6/6CD6GA.pdf
      I believe that the 1A435 was rated at 35 watts.
      Attached Files

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