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 Post subject: AK 40 transformer cans
PostPosted: Feb Sun 22, 2004 6:32 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 48
Location: Midwest
I now have both small cans emptied of their tar and contents. An article I read says that the transformers can be replaced with A53C's from AES. One of the older transformers is smaller and more cylindrical in shape. Is it also replaced by the boxier A53C? confused... Also I have noted that these transformers have 4 wires coming from them and the A53C's have 5 wires...what to do? Thanks for any and all help!<BR>P.S. started learning to read schematics today...not as bad as I first imagined!<P>Timnic<P>------------------<BR>Married to a card holding member of WAPSBINO; Wives Against Power Supply Baking In New Ovens!


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 Post subject: AK 40 transformer cans
PostPosted: Feb Sun 22, 2004 5:13 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 30698
Location: Pocasset, Cape Cod, MA
Just ignore the center tap on the A53C secondary. Stancor used to make A53s that didn't have the tap, but I guess it's easier for vendors to stock just one type.<P>------------------<BR>


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 Post subject: AK 40 transformer cans
PostPosted: Feb Sun 22, 2004 9:06 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 48
Location: Midwest
Thanks for the info. Can I use the A53C in both cans, though?<P>Timnic<P>------------------<BR>Married to a card holding member of WAPSBINO; Wives Against Power Supply Baking In New Ovens!


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 Post subject: AK 40 transformer cans
PostPosted: Feb Sun 22, 2004 11:19 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 30698
Location: Pocasset, Cape Cod, MA
Yes. The original transformers had slightly different peak frequencies, and were "staggered" to improve the overall response. Modern transformers aren't peaked like that, so they can be the same without accentuating any particular frequency.<P>------------------<BR>


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 Post subject: AK 40 transformer cans
PostPosted: Feb Mon 23, 2004 1:33 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3667
Location: Circleville, OH, USA
The large can was a 4.5:1 ratio & the small was ~3:1. I believe the A53 is a 3:1. If you use it in the large can, you will lose some volume, but it shouldn't be serious.<P>------------------<BR>


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 Post subject: AK 40 transformer cans
PostPosted: Feb Mon 23, 2004 1:36 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 48
Location: Midwest
So should I get something different so that I don't lose volume? Is there a 4.5:1 replacement available? Thanks,<P>Timnic<P>------------------<BR>Married to a card holding member of WAPSBINO; Wives Against Power Supply Baking In New Ovens!


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 Post subject: AK 40 transformer cans
PostPosted: Feb Mon 23, 2004 2:28 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 30698
Location: Pocasset, Cape Cod, MA
You'll never notice the difference.<P>------------------<BR>


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 Post subject: AK 40 transformer cans
PostPosted: Feb Mon 23, 2004 4:34 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3667
Location: Circleville, OH, USA
Alan is right, besides I've never found a source of 5:1 AFTs that would fit in the can.<P>------------------<BR>


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