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#1
02-20-2014, 10:08 AM
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Always take lots of reference photos before doing any work
 Is there a tube chart inside the cabinet ?
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#2
02-20-2014, 10:10 AM
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There is. I believe that says 5Y3 for rect. tube.
__________________
-Al
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#3
02-20-2014, 10:39 AM
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'Member that the 5Y3 has a 2A filament and the 5U4 is 3A.
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#4
02-20-2014, 12:21 PM
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Quote:
If you use a 5U4 where a 5Y3 is called for , you end up with a hot power transformer .....
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