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7-pin miniature tubes for audio?
7-pin miniature tubes for audio?
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Old 17th September 2019, 02:21 PM   #91
Kay Pirinha is offline Kay Pirinha  Germany
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About battery tubes: Did one ever try the 3A4/DL93, which appears to be the big block among them?
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"Bless you, Sister. May all your sons be bishops." (Brendan Behan)
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Old 17th September 2019, 03:27 PM   #92
kylej1050 is offline kylej1050  United States
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I have a pair of 3A4s but haven't personally tried them yet. They sure fetch a hefty premium over the 3Q4 or 3V4!

It isn't an AF tube per-se but I have a sleeve of 3B4s that I plan on trying over the winter time. It's got some potential as a potent miniature DHP if it can be tamed. A pair of 3B4s driven by a 3A5 input tube could make for a neat little directly heated amp.

Last edited by kylej1050; 17th September 2019 at 03:29 PM.
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