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neon333
 Post subject: Subbing 5879 for ef 86
PostPosted: Tue Jun 05, 2012 5:49 pm 
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Joined: Mon Apr 04, 2005 8:24 pm
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Location: New Jersey
How difficult would it be to use a 5879 instead of an ef 86 in a tc-15. I've been told the 5879 is less prone to microphonics.

Joe
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Stoo
PostPosted: Wed Jun 06, 2012 8:15 pm 
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Joined: Sat Jul 22, 2006 2:59 pm
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Location: Vancouver B.C. Canada
http://www.duncanamps.com/tdsl/show.php?des=5879
http://duncanamps.com/tdsl/show.php?des=ef86

3 or 4 changes to the pin wiring.
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kurtlives
PostPosted: Wed Jun 06, 2012 8:20 pm 
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5879's are also more plentiful (meaning cheaper!) than EF86's.

I've been meaning to experiment with the 5879 for a while now, just haven't had the time. :(

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http://pdfelectronics.com
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Traynor
PostPosted: Mon Jun 18, 2012 8:46 pm 
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I've been using them for years instead of EF86. Great tube, I think I've only found one to ever be microphonic. I'm lucky, I have about 25 NOS ones left.
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G-log
PostPosted: Wed Jun 20, 2012 4:43 pm 
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Joined: Thu May 17, 2007 12:44 pm
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I saw this cool little add-on circuit that I might try out. I have a couple of 5879's to use and I thought this circuit would be the way to go.Anyone ever try this out?http://www.dougcircuits.com/EF86.html
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