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Old 22nd May 2008, 03:10 AM   #1
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Default tubelabse pt wiring

this is my first amp build, (tubelabse 300b) i have a pt hammond 372jx
i am not sure how to hook it up to the board, i'm afraid to fry all the work i have done so far. can anyone with tubelab experience help?
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Old 22nd May 2008, 11:54 PM   #2
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from the schematic i think that i should connect it like this
Section 1 (600V CT @ 250mA ) red-red to T1-4 & 5, red-yellow to T1-1
Section 2 (5V CT @ 4A) yellow-yellow to T1-2 & 3, black-yellow not connected
Section 3 (6.3V CT @ 8A) green-green to T1-7 & 8, yellow-green to T1-6.
is this right?
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Old 23rd May 2008, 12:39 AM   #3
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Yes this is correct. Wire the primary according to the chart on Hammonds web site for your line voltage.
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
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Old 23rd May 2008, 06:49 AM   #4
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thank you
now i'm going to start testing with confidence!
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