Can you help me identify some NOS 12AX7s?

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hunter
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Can you help me identify some NOS 12AX7s?

Post by hunter » Fri Jul 12, 2013 10:48 am

Hi all,

I have a few tubes where I don't know what they are, could you guys help me out?
Each tube is shot from 2 different angles and pasted into one JPEG. Tubes 4 and 5 I know more or less, but as I am aware there are different versions of these, it would be nice if you could enlighten me as to which version they are and if they're of the better kind or worse.

Many thanks!!!!

Here the pics:
Attachments
tube3.jpg
(65.38 KiB) Downloaded 793 times
tube2.jpg
(79.12 KiB) Downloaded 793 times
tube1.jpg
(75.73 KiB) Downloaded 793 times

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hunter
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Re: Can you help me identify some NOS 12AX7s?

Post by hunter » Fri Jul 12, 2013 10:49 am

...ande the last two
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tube5_EI.jpg
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tube4_mullardUK.jpg
(64.98 KiB) Downloaded 792 times

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hunter
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Re: Can you help me identify some NOS 12AX7s?

Post by hunter » Mon Jul 15, 2013 5:58 am

noone?

:peace:

stef
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Re: Can you help me identify some NOS 12AX7s?

Post by stef » Mon Jul 15, 2013 10:00 am

I'll take a wild guess - Ei and Mullard

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rgorke
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Re: Can you help me identify some NOS 12AX7s?

Post by rgorke » Tue Sep 02, 2014 3:06 pm

On the Mullards, look for a BF number and I63 or I61. Those will confirm the are legit and I have had a I63 and really like it but have heard that others like the I61. YMMV>
"If you make a mistake, do it twice and smile and let people think you meant it." Jan Van Halen.

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