ST-70 Power Transformer Info - diyAudio
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Old 10th March 2007, 05:49 PM   #1
rudy129 is offline rudy129  United States
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Default ST-70 Power Transformer Info

I came across a power transformer that was in a Dynaco st 70 that does not have any familiar numbers on it to me. Was wondering if anyone has a clue as to who made this? The numbers stamped on it are; 464006
GT 9790
7578826
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Old 10th March 2007, 06:56 PM   #2
rudy129 is offline rudy129  United States
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I was able to find that 464006 is a Dynaco # that xreferences to PA060.
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Old 10th March 2007, 07:00 PM   #3
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Look at the DynaClone replacement data sheet. See how that matches up with the trafo you have.
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Old 10th March 2007, 09:41 PM   #4
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"757" is the EIA code for "Grand Transformers, Grand Have MI".

8826 is 1988, week 26.
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Old 10th March 2007, 10:23 PM   #5
rudy129 is offline rudy129  United States
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Did Grand manufacture this for Dynaco or is this a "drop in" replacement? Better, worse or the same as PA060?
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