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Old 02-23-2013, 07:55 PM   #1
Greed18
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12ax7/ecc83

Does anyone have experience with a Ei 12ax7 in the phase inverter position?
Or any good 12ax7 recommendations?
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Old 02-23-2013, 08:09 PM   #2
Robbgnarly
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Well Ei is a rebranded tube what is the code?

I find that the NOS JAN-GE/Phillips 5751 works really well you can find them at www.tubedepot.com $30ish
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Old 02-23-2013, 11:09 PM   #3
Greed18
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The Ei is a company that made Telefunken 12ax7/ECC83 after Telefunken shut down. They used the same machines that Telefunken used. The Ei 12Ax7 isn't the same as the telefunken in quality.
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Old 02-24-2013, 11:27 AM   #4
ikey_
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i am very happy with current production tung sol and jj tubes.

i rock a 12at7 NOS in the PI spot, and am very happy with the change. dont think ill put a 12ax in there again unless an amp specifies that it doesnt like the ats there
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