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Old 23rd April 2013, 10:00 PM   #1
youngie is offline youngie  United Kingdom
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Join Date: Jan 2012
Default will E80CF fit into yaqin 100b

will E80CF valve fit into yaqin 100b instead of the 12ax7 cheers all lee
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Old 24th April 2013, 07:12 AM   #2
tricomp is offline tricomp  Denmark
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Join Date: May 2004
Location: Jutland
How could it possibly?
12AX7 is a dual-triode and E80CF is a triode-pentode.
At least you need to rewire the socket an strap the pentode for triode-use.
Since the 12AX7 contains hi-mu triodes and the E80(C)F triode is a low-mu you'll loose a lot of gain.
I strongly suggest you drop the idea....


rgds,

/tri-comp
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Old 24th April 2013, 07:27 AM   #3
youngie is offline youngie  United Kingdom
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Join Date: Jan 2012
ok mate idear droped cheers lee
Quote:
Originally Posted by tricomp View Post
How could it possibly?
12AX7 is a dual-triode and E80CF is a triode-pentode.
At least you need to rewire the socket an strap the pentode for triode-use.
Since the 12AX7 contains hi-mu triodes and the E80(C)F triode is a low-mu you'll loose a lot of gain.
I strongly suggest you drop the idea....


rgds,

/tri-comp
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