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21st January 2011, 02:49 AM
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#1 |
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diyAudio Member
Join Date: Jul 2010
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my first tube amp, no tubes...
I have a Ampeg JET Model J-12 with no tubes just the amp no speaker or box.
Box got destroyed in storage...i want to rebuild it, i know it's old and possibly worth a few bucks. What kind of tubes does this thing take? Do they still make tubes for this? |
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21st January 2011, 03:17 AM
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#2 | |
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diyAudio Member
Join Date: Mar 2007
Location: Newark, DE
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Quote:
"The "guts" are two 12AX7 tubes and two EL84 power tubes..." |
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21st January 2011, 11:36 AM
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#3 | |
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diyAudio Member
Join Date: Jul 2010
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Quote:
Thanks i found the tubes... 2 are GE electric 7591 A U.S.A ============================ 2 are 6SL7GT TUNG-SOL 3226508-3 USA ....nut sure if these are all the tubes i need seeing how there's 5 slots for tubes. the last ones are obviously power tubes i think. should i use these or buy new ones? |
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22nd January 2011, 03:00 PM
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#4 |
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diyAudio Member
Join Date: Jul 2008
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here's the scematic for a T version
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22nd January 2011, 03:29 PM
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#5 |
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diyAudio Member
Join Date: Dec 2002
Location: Calgary, Alberta
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If it takes 5 tubes it's probably not a J-12: you're missing the suffix. Schematics for the J-12 series are here: The Free Information Society - Audio Electronic Circuit Schematics
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