Tubes Asylum

ECC85 -Mystery re-branded name ending in "...ACO:

66.115.157.67

wdctube

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

Follow Ups:

RE: ECC85 -Mystery re-branded name ending in "...ACO: - Spantou 12:13:36 02/11/21 (5)
Probably said "Dynaco". The FM-3 V1 was a ECC85 tube.
- RE: ECC85 -Mystery re-branded name ending in "...ACO: - wdctube 14:35:09 02/11/21 (4)
  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.
  - RE: ECC85 -Mystery re-branded name ending in "...ACO: - rivervalley817 15:58:40 02/11/21 (3)
    most assuredly a DYNACO
    - RE: ECC85 -Mystery re-branded name ending in "...ACO: - wdctube 17:39:07 02/12/21 (2)
      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.
      Will
      - RE: ECC85 -Mystery re-branded name ending in "...ACO: - rivervalley817 18:02:57 02/12/21 (1)
        
        In Reply to: RE: ECC85 -Mystery re-branded name ending in "...ACO: posted by wdctube on February 12, 2021 at 17:39:07
        
        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
        
        regards,
        
        RE: ECC85 -Mystery re-branded name ending in "...ACO: - AmadeusMozart 16:43:34 02/15/21 (0)
        
        In Reply to: RE: ECC85 -Mystery re-branded name ending in "...ACO: posted by rivervalley817 on February 12, 2021 at 18:02:57
        
        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.
        
        AM

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