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RM amps and burning smell

 
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mThomasDutch
RM50


Joined: 30 Nov 2010
Posts: 89
Location: South Carolina, USA

PostPosted: Wed May 02, 2018 9:57 am    Post subject: RM amps and burning smell Reply with quote

Hi All
I have noticed something peculiar about my RM amps. I have an RM100 head and combo and an RM50 combo. I have noticed with all three of them that as I get the volume up into the "loud" range - say 10 or 11 o'clock - that they start to emit a burning electronics kind of smell.
    I never bias above 70% dissipation for any tubes I use, and I'm not seeing red plates or anything like that.
    None of the amps or tubes are new.
    The smell freaks me out and I back down the volume and the smell goes away over time.

Is this normal for these amps? Anybody have an explanation? I've wondered if this smell might be common in PCB amps but the fan in the RM amps just kinda spreads it around better.

Thanks in advance for any ideas.
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RM100 head, RM100 combo, RM50 combo
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mThomasDutch
RM50


Joined: 30 Nov 2010
Posts: 89
Location: South Carolina, USA

PostPosted: Sat May 05, 2018 10:31 am    Post subject: Reply with quote

Anybody? Beuller... Very Happy
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Fun with my Fender Blues Jr.
http://www.youtube.com/watch?v=D4htXJQqIgA

RM100 head, RM100 combo, RM50 combo
Gaggle of modules
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Jaded Faith
Moderator


Joined: 14 Jul 2007
Posts: 2684
Location: Hamilton, NJ

PostPosted: Mon May 07, 2018 11:25 am    Post subject: Reply with quote

No, certainly not normal.
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