Mullard Xf2 ID help.

redberon2003

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Hey, got a set of tubes off eBay sold as XF2s one is marked 69 has a dark brown base and etchings look good. The other is a 1970 date code but I can’t find the “XF” code above the B0K1 date code. They’re also of slightly different construction from what I can see. Mica in the 69 has 4 holes in it lacking in the 70. Here’s the tube in question.

IMG_2535.jpg IMG_2527.jpg IMG_2528.jpg IMG_2534.jpg IMG_2531.jpg
 

redberon2003

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Looks ok. Its clearly an Xf2. What more do you need to know?

First couple I’ve handled and while they looked right on first glance I had a couple reservations from my lack of knowledge, but that puts my mind at ease. Thanks Ray.
 

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