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Looking for Hammond Output Transformrt
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Sorry for the long time to respond. I haven't found one as of yet. Thought I did. :-/
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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.
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Originally posted by grindfix View PostHi,
Can anyone suggest where to find A0-30072-1 OPT?
Hammond E-143 organ AO-63-1 chassis
Thanks
Dmitriy
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 !
JPLast edited by Jyvoipabo; 01-16-2018, 01:04 PM.
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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
DmitriyTags: None
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