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Questions about tubes and gear that glows. FAQ

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Re: You sure its not a 5693? (nt)

Posted by Gary Kaufman on April 2, 2001 at 21:12:07:
There are 4 members of the "RCA Red" series:
5690: Rarely seen, Dual Rectifier, unique pinout.
5691: 6SL7 type
5692: 6SN7 type
5693: 6SJ7 metal type
Gary's Tube Page