Hobostubs Ashlock
1997 posts
Jan 15, 2013
1:16 AM
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My 1 year super champ XD has a rattle sound when i play my affinity strat though it,I thought maybe tubes were going bad,its my 1st tube amp,I tapped them with a pencil and the didnt rattle.I just started noticing the slight rattle awhile back,But that doesnt mean ,It wasnt there all the time,But im not sure.
So I hooked up one of my cigarbox guitars ,the one with a cheap single coil pick up,And it sounds great no rattle ,with slide,or fretted notes.
I hooked up a bullet harp mic played some though it no rattle.
With the squier affinity strat it rattles if I pick a few notes hard.
I was wondering strats have the PoP sound ,that Great sound that strats are know for ,Thats why I love strats
could that be making the tubes rattle?
The afinity is a decent guitar it doesnt have high dollar pickups ,but nice warm ceramic pickups,i say this because i was wondering maybe the cheaper pickups might be the problem,But my CBG I built with some old parts from a real cheap guitar,that was about as cheap as they come,that i had laying around the house.
It bugs the hell out of me,I was thinking about trading it in for a nice solid state amp,But Man do i love the Tone of the tube amp,even with a little rattle.
Im wondering because it works great with other instruments if its the amp
any thought on the matter greatly apreaciated
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Hobostubs
Last Edited by on Jan 15, 2013 1:18 AM
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Hobostubs Ashlock
1998 posts
Jan 15, 2013
1:51 AM
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thanks JD
I just hooked up my resonator JT-900 which has a humbucker up front and It does rattle some with it,Its not real loud when it rattles but its there.Kind like when you shake a light bulb thats burned out ,sort of like that but not as loose,The amp has only been moved a few times most times.It sits in the same spot,But ill check to see if anything has wiggled loose.I think it does it at all volumes most times i play at only 3,I havent even really cranked it up,I did bring up to about 4 tonight and it still does it,But most times theres people watching TV or something so I dont get to loud
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Hobostubs
Last Edited by on Jan 15, 2013 1:55 AM
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dmitrysbor
26 posts
Jan 15, 2013
2:00 AM
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Old tube amps don't become younger, don't it? ;)
I use VST plugins emulating a lot of types of tube equipment: amps, pedals etc.
I would say if you not too match involved in the live gigs, it's pretty good up-to-date solution.
Last Edited by on Jan 15, 2013 4:49 AM
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Hobostubs Ashlock
2000 posts
Jan 15, 2013
2:04 AM
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I have a rp-155 and a PA that i sometimes hook direct,and it sounds good,But not as near as good as the Tube amp,But im sure theres some good solid state stuff around now days that would come close
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Hobostubs
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Hobostubs Ashlock
2001 posts
Jan 15, 2013
2:06 AM
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well I tapped them but the cover over the tubes was still over the tubes so I couldnt get a good tap ,how hard do they need to be tapped?I could reach them but not real good
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Hobostubs
Last Edited by on Jan 15, 2013 2:08 AM
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Hobostubs Ashlock
2002 posts
Jan 15, 2013
2:15 AM
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do you do it while the amp is turned on?
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Hobostubs
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Hobostubs Ashlock
2003 posts
Jan 15, 2013
2:31 AM
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thanks ,I didnt have the amp on,Ill have to go check it again
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Hobostubs
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Hobostubs Ashlock
2004 posts
Jan 15, 2013
2:43 AM
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well i had it on,and the amp set to 5,But it still doesnt rattle when tapped,I see if theres any thing loose.
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Hobostubs
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5F6H
1494 posts
Jan 15, 2013
4:24 AM
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Is it a tinkling type rattle?
Try a 5751 or 12AT7 in the preamp tube position. It'll change the tone slightly, but see what effect this has on the rattle.
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www.myspace.com/markburness
http://www.facebook.com/markburness
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SuperBee
823 posts
Jan 15, 2013
4:44 AM
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I'm not sure if this has any bearing on the likelihood of a valve being responsible for the rattle or not, but fwiw I believe the 12ax7 in that amp is simply a phase inverter, the preamp is ss.
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tmf714
1435 posts
Jan 15, 2013
6:19 AM
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Most of the guitar players have found the problem is a combination of things.
You can try loosening the chassis screws to move the chassis all the way forward.
Some have swapped the speaker out with success,while others replace all tubes-JJ 6V6,Tungsol 12ax7.
Most have discovered its the baffle,but no cure yet as it only has two small "mounting points".
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Hobostubs Ashlock
2005 posts
Jan 15, 2013
8:27 AM
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Its been a long time sence I had a amp,Back in the day I had a few solid state amps,I dont remember them having rattling problems or needing any adjustment,Is this a problem thats more prone to tube amps,Not the tube rattle of course;-)But the having to tighten stuff.
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Hobostubs
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5F6H
1498 posts
Jan 15, 2013
8:35 AM
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Depends on the amp...more common on some models than others. Many apparently "mechanical" rattles aren't.
Are you saying that you have cured by tightening something? Good to know, if you have.
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www.myspace.com/markburness
http://www.facebook.com/markburness
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Greg Heumann
1947 posts
Jan 15, 2013
8:43 AM
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You only tapped the 1st tube? ANY tube can be microphonic (though it would be a stretch to think thus could come from the rectifier tube.) Tap them all.
At our jam recently we had a loud amp rattle issue (like yours - sensitive to the kind of tone being input). Turned out to be the mfg's logo plate on the grill cloth. Make the sound and touch anything, inside and outside, that you can get your hands (outside) or a chopstick (inside) on. Don't rule out things that look like like they're part of the amp - knobs, grills, switches. Doesn't take much!
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/Greg
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Hobostubs Ashlock
2006 posts
Jan 15, 2013
10:01 AM
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Thanks for the info,everyone,No i havent fixed it yet,Im fixing to run some errans in town and when i get that done,Im going to try all the sugestions
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Hobostubs
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