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how to replace tubes

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Old 04-30-2007, 06:50 PM   #1
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how to replace tubes
so i bought new tubes for my ac15, but i have no idea how to put them in. anyone help?

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Old 04-30-2007, 06:53 PM   #2
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Twist and pull/push... they're like light bulbs... some screw in, others you push and turn... depends on the tube...
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Old 04-30-2007, 06:55 PM   #3
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Quote:
Originally Posted by AXguitar View Post
Twist and pull/push... they're like light bulbs... some screw in, others you push and turn... depends on the tube...
weird...I've never seen a tube that twists in...what amp uses those?
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Old 04-30-2007, 07:00 PM   #4
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Yeah, I wouldn't reccomend twisting most tubes. Just pull.
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Old 04-30-2007, 07:08 PM   #5
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hahah oh, thanks that was easy. i would have never figured that out. i was scared just pulling it.
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Old 04-30-2007, 07:21 PM   #6
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Quote:
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weird...I've never seen a tube that twists in...what amp uses those?
I've never seen an amp with twist tubes... but i've seen twist tubes... so I figure, if they exist, then some amp must have them...
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Old 04-30-2007, 09:24 PM   #7
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I was afraid replacing the tubes in my amp the first time. After all the horor storys I heard about people getting zapped, but I guess that has more to do with working on the amp like soldering etc.
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Old 05-01-2007, 12:46 AM   #8
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Glass doesn't conduct electricity. Just pull the tube.
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Old 05-01-2007, 01:15 AM   #9
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oh..i wasnt thinking about getting zapped. thanks, a new fear. i was just worried i might break it.
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Old 05-01-2007, 02:24 AM   #10
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Quote:
Originally Posted by AXguitar View Post
Twist and pull/push... they're like light bulbs... some screw in, others you push and turn... depends on the tube...
I use quite a number of tubes... Some offbeat ones and I have not seen a screw in one.

AC-15's use el84's and 12ax7's IIRC, both of which pull straight out for certain!
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Old 05-01-2007, 12:25 PM   #11
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You should be careful to line things up correctly when putting the new tubes back in - it's a unique kind of frustration to be holding an otherwise perfectly good tube with a metal-fatigued, broken off contact pin. Changing tubes is something that nobody should have to take the amp into the dealer to do, though.

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