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Eico 666 - mutual conductance capable?

Hi gurus!
I am seeing different statements regarding the capability of Eico 666 to execute mutual conductance test or 666 reads ? I am shopping for the tube tester (my first one) and was considering this one. Could someone with knowledge in the area confirm either statement?
Thank you,
Anatoliy
PS I couldn’t find the PDF (only djvu) manual, if someone can share a link would be great too.

anatoliy
tls49's avatar
tls49
1,351 posts
 
Here's a guide for buying a tube tester.

http://www.alltubetesters.com/articles/tester_guide.htm


anatoliy OP
16 posts
 
Thank you, very nice document! Doesn't have/mention Eico when discussing Gm so I guess one can assume that Eico is not "truly" mutual conductance tester. Thanks for sharing.
Best Regards
tls49's avatar
tls49
1,351 posts
 
You are welcome and yes, it looks like the Eico is in that dynamic conductance category, and not an actual mutual conductance tester.

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