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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Re: Help with dysfunctional MC 240 posted by el_37 on March 27, 2007 at 15:02:36:
My 240 was re-furbished by Audio Classics when I first got it, and it's worked flawlessly for five or six years. I noticed a tube glowing cherry red on the plates a few months ago, switched tubes and found the same thing, so I unplugged it and sent it to Terry DeWick. Dewick checked the whole thing over and found nothing wrong with it. Once I had it back from DeWick I played it in a second system for a couple dozen hours, when the offending tube flashed blue and I posted here. I can't really blame DeWick, because it played fine for a while before this problem started happening.I know a bit of electronics, but I've always paid other people to work on my Mac. However, I REALLY, REALLY don't want to pay $70 to ship this thing to another tech - I just got it back from Dewick a few weeks ago. That's why I took the voltage readings and posted here.
Anyway, to answer to your point, the selenium rectifier has been replaced and this 240 has been gone over by two guys who are generally considered the best Mac techs in the business.
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Follow Ups
- Re: Help with dysfunctional MC 240 - Will shade 16:20:29 03/27/07 (2)
- Re: Help with dysfunctional MC 240 - el_37 19:08:21 03/27/07 (1)
- Re: Help with dysfunctional MC 240 - Will Shade 19:20:22 03/27/07 (0)
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