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Can anyone tell me (or a clue) on what the rebranded name of this tube may have been, the name ending in ...ACO"? The front half of the name has been warn away and I'm just curious as to what the name may have been.
Based on the date code:
1st line "tU8" which I believe signifies ECC85/6AQ8
2nd line "‡1F" = Siemens Halske West Germany Munich / 1959 /Jun
Probably said "Dynaco". The FM-3 V1 was a ECC85 tube.
Possibly, but the feint letter left of the "A" looks like it could be a Y. The right side of the V-shaped is the same angle as the A leg. I don't think it's a V due to the proportions to the A.
I should also mention that I can clearly read ECC85/6AQ8 at the top.
most assuredly a DYNACO
Gentlemen, I would like to thank you, I'm throwing in with the consensus Dynaco it is. I have also taken some additional photos, which in the right light, at the right angle, I was able to make out the Y & N, showing clearly YNACO.
Again I thank everyone and all the best.
cool ... how do they test?
I ran Dynaco kits for a good while and found the FM3 tubes shed lettering when it ran a bit hot ... well mine did anyway until I wised up to better ventilation / clearance around the units
actually, my cousin 'wised me up' to tell the truth
Don't know how true this is - I've read to put the tube in the freezer and then when you get it out there will be a brief moment that condensation settles on the tube but less so where lettering used to be. It was suggested to have a camera handy.
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