Questions about tubes and gear that glows. FAQ
I picked up these Ei power tubes recently and I can quite make out the tube type writing on the glass. It looks like 6??6A. They have nine pins and anode caps. The two in the photo has some internal differences, but appear to have the same type label on them.
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Topic - YUGO Ei Tube ID Help - Steve M. 07:05:21 05/21/20 (4)