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 Post subject: EL84 Redplate Questions
PostPosted: Wed Jan 10, 2018 11:54 pm 
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Mark II
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Joined: Sun Jan 12, 2014 2:29 pm
Posts: 117
At practice tonight, the sound started to fizzle out and smelled something hot. One of the EL84s had red plated.

1. What type of life are people getting from their EL84s? Mine were Mesa, had been in the Amp a long time.
2. I will check the screen resistors. Has anyone had to replace them in their Amp?

I did some searching here and was not able to find anything. Have heard that EL84s wear out faster than 6L6 or EL34 tubes but don't have personal history until now.

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MKIIA in Custom Black Limba Cabinet Tone Tubby Winterland;
Express 5:25+ with Tone Tubby Purple Haze


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PostPosted: Sun Jan 28, 2018 4:56 am 
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Mark II

Joined: Sat Feb 09, 2013 5:30 pm
Posts: 143
I've owned a Studio 22+, DC2, and Express 5:25+ and only have redplated a tube 1 time when the screen resistor burned out. Mesa EL84 tubes last quite a while. 5 years on my Express 5:25+ so far.

Al


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