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12AX7 octal sub, Cryogenic tubes??Bill Perkins??

Hello,
For a 12AX7 sub/octal I've heard to use 6SL7, I've looked at the specs
and I wonder why people say these are equivalent..but I fd another sub 6SQ7, at DEJA.COM ... http://www.deja.com/home_ps.shtml
http://x32.deja.com/[ST_rn=ps]/getdoc.xp?AN=370640973&CONTEXT=934042338.951517234&hitnum=0
Cryogenic tubes??
http://x40.deja.com/[ST_rn=ps]/getdoc.xp?AN=438617965&CONTEXT=934042895.2060189851&hitnum=2
Who is Bill Perkins? Does he have a website?




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Topic - 12AX7 octal sub, Cryogenic tubes??Bill Perkins?? - ChristopherC 09:34:10 08/7/99 (3)


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