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Ttriod750 replied to the thread McChanson amps tube rolling thread.I looked at the photo again and the print might actually be on a sticker that is sealing the box. I don't remember when Philips started...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.Yes, maybe, if it was reboxed. Otherwise I think this would be on a sticker or something
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Ttriod750 replied to the thread McChanson amps tube rolling thread.From the factory code (bottom line B6C1) you can see that it is made by Mullard Blackburn (B for Blackburn factory) for the company...
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Ttriod750 reacted to Cognomen's post in the thread Little Dot Tube Amps: Vacuum Tube Rolling Guide with Like.While listening to RCA Made in Great Britain 6HM5, I looked up this list of single triodes (and a few nuvistors) and queried them on all...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.Yes it does. Like 12A*7 tubes it runs also on 6,3V. Pin 9 is hct, heater centre tap connection.
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Ttriod750 replied to the thread McChanson amps tube rolling thread.Then you have to change the tubes...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.Mullard Blackburn November 1958 or 1968 is my guess. I don't remember when they stopped production and don't know for how long they made...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.https://dalmura.com.au/static/MOV%20GEC%20date%20coding.pdf Here is one explanation. I don't know for sure that it is correct. Much on...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.Quote: "THE GREAT MULLARD MAGIC BLOG › CV NUMBERS AND UK MILITARY DATE AND FACTORY CODES CV NUMBERS AND UK MILITARY DATE AND FACTORY...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.Might be Blackburn third week of October a year ending with a 6, maybe 1956 at the earliest but I would not be surprised if it is 1966...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.Blackburn third week of October a year ending with a 6. What is the third digit in the type code? Early or late batch?
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Ttriod750 replied to the thread McChanson amps tube rolling thread.I'm listening to a pair of Adzam branded EL82 in EL84 adapters. First i tried one A2900 as input tube but the outcome was somewhat...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.And might the 8 in 8bk actually be a B? If so, it would be B for Blackburn. Blackburn factory code is B. Just a thought.
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Ttriod750 replied to the thread McChanson amps tube rolling thread.Hm is the Philips type code for EL38 while 1 is a change code, kind of batch code. The first tube with Hm1 7F uses the five digit old...
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Ttriod750 replied to the thread For 6AS7G tube rollers here ......Can you provide a photo of the pins and of the adapter?
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