T
triod750
Headphoneus Supremus From Sweden
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TI for one owe a lot to Deyan, class guy making great adapters at reasonable prices. Hope you get a bit of pleasing reaction to this...
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Ttriod750 replied to the thread McChanson amps tube rolling thread.With these meters you see the current draw from both tubes at the same time.
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Ttriod750 replied to the thread McChanson amps tube rolling thread.I guess they are for the current meters you see to the right in another photo. They show how many mA the tubes draw.
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Ttriod750 reacted to OctavianH's post in the thread Tube rolling thread | UltraSonic Studios with
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Returning to these metal base tubes, I made a check of 5-code 4654 and 4654K and sound identical. Both types with flat ring getter. My... -
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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