date code on Amperex Bugle Boy EL34


this tube has two D getters,a brown base,and the bugle boy with made in holland on it. My question really is helping me understand the date code on the glass down by the base.It is as follows
xf5
L2F1
if anyone can be of help it would be greatly appreciated.

Thanks,Bob
boblesar

Showing 1 response by boblesar

Sorry for not getting back to both of you sooner,but i do want to thank you for your response and sharing your knowledge with me.

Bob.