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Old 12th May 2012, 03:39 PM   #1
Einric is offline Einric  United States
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Location: Bozeman, MT
Default Preamp Tube MU Level?

I have been VERY happy with my newly completed Aikido.
I chose to build mine with 300V B+ and now I am looking for some "Fancy" tubes.
I see the 12AU7 & 12AV7 are happy with 300V B+ but the MU values are different than my 6CG7's.
6CG7's have about MU 21.8, the 12AU7 MU 18.1 & the 12AX7 MU 100.

What differences would I notice with the different MU values?
They all seem to have about the same I/O gain levels.
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