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#1
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high pitch squeal
on my mesa boogie amp, I get a high pitch squeal that is only relieved
by turning down the reverb or switching the standby on and off. what do you think this is??? jmb |
#2
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high pitch squeal
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#3
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high pitch squeal
Hey, Sparky - you got a model number for us? This ain't the
Psychic Friends Network, y'know... LV wrote: on my mesa boogie amp, I get a high pitch squeal that is only relieved by turning down the reverb or switching the standby on and off. what do you think this is??? jmb |
#4
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high pitch squeal
Lord Valve wrote: Hey, Sparky - you got a model number for us? This ain't the Psychic Friends Network, y'know... LV its a subway blues amp. its got 4 preamp tubes 12ax7 and 2 -el84s that all the info I have. jmb wrote: on my mesa boogie amp, I get a high pitch squeal that is only relieved by turning down the reverb or switching the standby on and off. what do you think this is??? jmb |
#6
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high pitch squeal
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#7
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high pitch squeal
wrote: Peter Wieck wrote: wrote: its a subway blues amp. its got 4 preamp tubes 12ax7 and 2 -el84s it does it with any guitar plugged in ( also with or without a Boss DS 1 distortion unit plugged it on or off.) it doesn't do it unless its being used for at least 10 minutes. then I toggle the standby on /off/on . there was a burning smell before this. but then I found a el84 with the top blown off. the outlet its plugged into is a designated curcuit. nothing else is on that curcuit. guitars are fenders, but the sound is not a hum. one of the fenders has lace sensors. the volume is set at 10:00 or less.if the control on the back that works the effects send is up , it seems like it was worse. |
#8
Posted to rec.audio.tubes
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high pitch squeal
wrote: Peter Wieck wrote: wrote: its a subway blues amp. its got 4 preamp tubes 12ax7 and 2 -el84s it does it with any guitar plugged in ( also with or without a Boss DS 1 distortion unit plugged it on or off.) it doesn't do it unless its being used for at least 10 minutes. then I toggle the standby on /off/on . there was a burning smell before this. but then I found a el84 with the top blown off. the outlet its plugged into is a designated curcuit. nothing else is on that curcuit. guitars are fenders, but the sound is not a hum. one of the fenders has lace sensors. the volume is set at 10:00 or less.if the control on the back that works the effects send is up , it seems like it was worse. |
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