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In Reply to: Mullard 12AX7 date code 16L B91 posted by HOK on March 31, 2006 at 04:37:23:
Hi ,
Unsure , recheck and report . The code should read I61 Bxxx or I63 Bxxxcheers
...FB
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Follow Ups
- Re: Mullard 12AX7 date code 16L B91 - fatbottle 06:46:43 03/31/06 (0)