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Re: advice needed on Mullard 12ax7

Looks like the top got cut of my last post. What I was asking is if anyone can ID a tube I have that looks identical to an old Mullard 12AX7 I also possese. I hope to use the pair in my amp but an concerned because they sure look physically identical but whats left of the writing on the other tube says ERIC and last two numbers I could read are 17, Said also Britain and below that B5H2. Will it screw my amp up to user it in place of a 12AX7? Is it comparable to the Mullard?


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