Adambomb
Member
I can't read it and was wondering if anyone could tell me what the inside code is. Last 2 look like E3...
And is that an I61 upsidedown? Got it from one of the most reputable dealers in the US. Reason I'm concerned is cause their is no flashing at power up. Now most all Mullard 12ax7's flash but I've heard from many people say they have a couple that don't flash. Has good glow and sounds great (guess that's all that matters). Any serious tube guys responses would be much appreciated.
UPDATE: ok the last 3 are FOR SURE 9E3. And tube has only 2 creases on top of each side of tube instead on some 60's that had 4.
And is that an I61 upsidedown? Got it from one of the most reputable dealers in the US. Reason I'm concerned is cause their is no flashing at power up. Now most all Mullard 12ax7's flash but I've heard from many people say they have a couple that don't flash. Has good glow and sounds great (guess that's all that matters). Any serious tube guys responses would be much appreciated.
UPDATE: ok the last 3 are FOR SURE 9E3. And tube has only 2 creases on top of each side of tube instead on some 60's that had 4.
