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Post by teleZgrl68 on Sept 3, 2007 15:52:46 GMT -7
Today my amp started to make a strange sound, what sounded to me like a form of morse code. After unplugging my guitar and pedals and turning each knob down I still heard it. I then turned amp over and began to check the tubes one by one. One of the 12ax7's did feel a bit loose so I tightened it continued to check the rest of the tubes then fired it back up and it seemed to fix the prob. My question is if what I was hearing stemming from that loose tube? Or could this be a sign of something bigger to come I'm still learning how to troubleshoot with my amp -paranoid parent here... sorry for the novice ?'s Thanks!
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Post by John on Sept 3, 2007 16:12:46 GMT -7
If it's not doing it anymore, then I'd say you got it. Even aside from pushing the tube in, the connection can oxidize/corrode slightly...just enough to cause a connection problem. So wiggling the tubes every few months wouldn't be a bad idea.
It doesn't sound like anything bigger to come.
But Jen, do you keep spare tubes on hand? (especially power tubes)
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Post by nitehawk55 on Sept 3, 2007 16:20:45 GMT -7
It is possible you live close to a ham operator that uses code . With the wattage some of these fellows use their signal can and will bleed into electronic gear such as amps , radio's and the like .
When I was on the air many years ago my neighbor listened to me on his TV ;D
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Post by teleZgrl68 on Sept 4, 2007 12:32:36 GMT -7
Thanks for commenting!! I played through it again last night and still no noise so I'm relieved at this point ;D
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Post by Lefty on Sept 4, 2007 15:47:27 GMT -7
Cell phone?
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Post by telejas on Sept 22, 2007 10:58:21 GMT -7
Cingular and T-Mobile cell phones are the worse (GSM phones). That sounds like morse code, sometimes even when not getting a call and it's just renewing itself on the network periodically. I was playing an acoustic/semi-electric show last month with my Ray and left my phone on top of my amp... about halfway through the 2nd set my phone recieved a text (from my wife wanting something from the store on the way home) and it sounded like the whole system was about to explode.. Pretty embarrassing. That'd be my guess.
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Post by fisholot on Sept 22, 2007 11:17:54 GMT -7
Cingular and T-Mobile cell phones are the worse (GSM phones). Thats an understatement.....
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Post by billyguitar on Sept 22, 2007 12:51:36 GMT -7
Blackberrys are even worse!
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Post by teleZgrl68 on Sept 28, 2007 11:08:24 GMT -7
Really?? Hmm... yet another reason to do away with T-Mobile!! Ya know now that I think of it I did have my cell on me while I was playing and had taken a call, but never tied the two together. Thanks guys! Oh and a dear friend of mine who just so happens to hate T-Mobile thanks ya too!
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Post by jb on Sept 28, 2007 12:35:55 GMT -7
My amps do that morse code thing quite often. I was assuming that it was just picking up a signal from somewhere.
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Post by play4jc on Oct 22, 2007 14:34:41 GMT -7
Mine this weekend was doing a morse code thing, turned out to be a real expensive v2 tube i placed in there.
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Post by deltone on Oct 29, 2007 19:57:42 GMT -7
Sounds like a cell phone issue to me, too. Our bass player's phone always does that through his amp during rehearsal. I've never thought about it being relative to a particular provider. I'll have to check to see which one he uses. Nobody else's phone does that...only his.
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Post by johnnyl on Oct 31, 2007 10:12:14 GMT -7
When I have my T-Mobile Sidekick downstairs w/ my amps it does the morse code thing to my amps & PA about every 1/2 hour when it's receiving network signals... kind of a pain.. my regular cell phone doesn't do it though..
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