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Looking for Hammond Output Transformrt

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  • nonreverb
    replied
    Excellent!

    Leave a comment:


  • grindfix
    replied
    Originally posted by nonreverb View Post
    Bingo! I found it....PM me please if you're still interested.
    I know its been several years. I'm sorry but I didn't get any notifications. I found exact match and all is good. Thanks!

    Leave a comment:


  • nonreverb
    replied
    Bingo! I found it....PM me please if you're still interested.

    Leave a comment:


  • nonreverb
    replied
    Sorry for the long time to respond. I haven't found one as of yet. Thought I did. :-/

    Leave a comment:


  • nonreverb
    replied
    I might have one. I'll check tomorrow.

    Leave a comment:


  • David Anderson
    replied
    Jyvoipabo is correct. The only way you will find an exact replacement output transformer is from a parts unit.

    Otherwise, you simply choose the type of output transformer specified for a push-pull output stage using the type of vacuum tube you have in the amp. You will probably have to accommodate different mounting dimensions.

    Leave a comment:


  • Jyvoipabo
    replied
    Originally posted by grindfix View Post
    Hi,

    Can anyone suggest where to find A0-30072-1 OPT?
    Hammond E-143 organ AO-63-1 chassis

    Thanks
    Dmitriy
    Hello,

    This amplifier is a 7591 Puhpull
    http://www.tubezone.net/pdf/7591.pdf
    See schematic. Working point is 450V;400V;-21,6V
    Page 3 of 7591 data recommends a tube load resistor of 6600 Ohm plate to plate (primary).
    In this condition Power output is 45 Watts
    I think secondary is 8 Ohm with center tap (CT).

    This transformer is a 6600 Ohm CT / 8 Ohm CT ; 45W min

    Search here :
    hammond transformers cross reference
    Or download Hammond catalog https://www.hammfg.com/files/literature/5c.pdf

    Model 1650P is 6600 Ohm CT / 4;8;16 Ohm / 60 W Audiophile !

    JP
    Last edited by Jyvoipabo; 01-16-2018, 01:04 PM.

    Leave a comment:


  • grindfix
    started a topic Looking for Hammond Output Transformrt

    Looking for Hammond Output Transformrt

    Hi,

    Can anyone suggest where to find A0-30072-1 OPT?
    Hammond E-143 organ AO-63-1 chassis

    Thanks
    Dmitriy

Hello!

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