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17th July 2011, 07:57 PM
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#1 |
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diyAudio Member
Join Date: Jul 2011
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Kay 503 Schematics?
Hello
Anyone know where I can locate a schematic for the Kay 503 Tube Guitar Amp? I'm not having any luck via Google or schematic heaven. Thanks for your time. Cheers, Marc P.S. There is a site that wants $15 at: Kay*Schematics |
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17th July 2011, 10:16 PM
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#2 |
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diyAudio Member
Join Date: Aug 2006
Location: Taxland, New Jersey
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Kay 500
Here is a PDF of a Kay 500. I don't know how different it is, but maybe it's close enough to work with.
Found it here:  Link to unauthorized copyrighted material removed
__________________
"The supercomputer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." ~ Professor of Electrical Engineering, New York University |
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18th July 2011, 12:14 AM
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#3 |
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diyAudio Member
Join Date: Jul 2011
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Thanks HollowState
I'll compare what I find on the inside of the amp (hopefully still there and/or legible) with the 500. I also found a thread at another forum (harmony central) where someone thought the 703 and the 503 are basically the same??? Kay Amplifiers [Archive] - Harmony Central Forums Anyone know how similar/dissimilar the 500/503 and or the 503/703 might be? Cheers, Marc |
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18th July 2011, 01:31 AM
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#4 |
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diyAudio Member
Join Date: Aug 2006
Location: Taxland, New Jersey
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Caution
I forgot to mention that the 500 amp is a dangerous amplifier because it's direct from the AC mains! If the 503 is like this, use an isolation transformer!
__________________
"The supercomputer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." ~ Professor of Electrical Engineering, New York University Last edited by HollowState; 18th July 2011 at 01:38 AM. Reason: spelling |
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18th July 2011, 10:22 PM
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#6 |
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diyAudio Member
Join Date: Sep 2004
Location: Lansing, Michigan
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If 503 and 703 are the same, then comparing the schematic to the amp should verify that.
Check out the Schematic Heaven link below, there are a bunch of Kay schematics, including the 703. See if any of them are useful. Bargain Bin Heaven Amp Schematics - Airline Garnet Gretsch Hagstrom Kalamazoo Kay Magnatone Selmer Silvertone Supro |
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