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 Post subject: 12BZ7?
PostPosted: Mon Mar 05, 2018 3:07 pm 
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Mark III
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Joined: Wed Feb 27, 2013 12:45 pm
Posts: 330
Location: Southwest Michigan
I stumbled across a thread on another forum. In that thread, amp builders (supposedly) were talking about using a 12BZ7 in place of a 12AX7 in the PI slot. I have never heard of this tube before. Has anyone here tried using on in the PI slot?

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 Post subject: Re: 12BZ7?
PostPosted: Mon Mar 05, 2018 10:13 pm 
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Mark II
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Location: East Coast, New Jersey
Found a spec sheet:

http://philbrickarchive.org/12bz7_sylvania.pdf

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