The triple mica ones are most likely to have been made for when they need to be less microphonic.
The extra layer is mica is not there to prevent microphony .
316a
Now, you left me quite puzzled with this remark. Can you please supply some more info which brought you to this conclusion? Much appreciated in advance.Hello,
Usually when these kind of populair tubes pop up somewhere they are fake.
greetings, eduard
Yep! Lower leakage due to less contamination of the envelope and internals during manufacture which is the purpose of the extra mica.Yes, it provides the getter from getting into the tube structure .
Best regards!
316a
A shot in the dark, I'd say. But I'm also very curious on his answer !Now, you left me quite puzzled with this remark. Can you please supply some more info which brought you to this conclusion? Much appreciated in advance.
Best regards!
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