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  • Princeton heater question

    hi, im not hear often so i hope my question is in the right place. im hooking up the heater supply on a black face princeton aa964. the psu is 6.3V so i need to hook up in parrallel yes?? one leg pin4 to pin 4 the other pin 5 to pin5. leave pin 9 alone? i think i have this right please correct me if im wrong. ive seen 4 and 5 jumped and the other leg of 6.3 from pin 9 to pin 9.
    what do i do on the 6l6 tubes. thanks for any help. (drawing? diagram?)

  • #2
    Jumper 4 to 5, connect that pair to one leg of the 6.3VAC. The other leg goes to 9.

    For the 6L6s, there are only two connections - hard to get wrong.

    Hope this helps!

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    • #3
      thats all i needed thanks

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      • #4
        For power tubes in push pull amps, keep the filament polarity the same on all tubes. That way, hum will get cancelled when it goes through the output transformer.

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