bpiotrow13
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It is indeed a good good tube, but the more positive things we write about it here, the more expensive it is...
For 6AS7G tube rollers here .....
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nykobing
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I have one that is stamped both, this is the same tube.
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mordy
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Trying to figure out the date codes - 503 and C W. There is an RCA date code CW = April 1970. Don't know what 503 means; maybe 3rd week 1965?
CAJames
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mordy
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Good shot, but I think the tube was manufactured before HTTP existed…
HTTP was first mentioned in 1991 and became standard in 1997.
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gibosi
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I doubt that CW is a date code. Typically, 503 would be the third week of 1955. And in that photo, to the left, I see a few more numbers, 434... ?
nykobing
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gibosi
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A stab in the dark... Tung-Sol date: 1954, week 34. Sold to RCA and their date is usually a shipping date, so it was labeled and shipped out in 1955, week 3.
But sometimes it is best not to try to be too precise, so I would date it sometime between 1954 and 1955.
mordy
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Tung Sol bought Chatham in the 1950's but I don't know which year. Possibly the RCA labeled tubes were bought from Chatham before Tung Sol bought them?A stab in the dark... Tung-Sol date: 1954, week 34. Sold to RCA and their date is usually a shipping date, so it was labeled and shipped out in 1955, week 3.
But sometimes it is best not to try to be too precise, so I would date it sometime between 1954 and 1955.
Came across an interesting document - a Tung Sol wholesale price list from 1959. Looking at the prices and adjusting for inflation you will see that the lowest wholesale price for a 6AS7G is $2.71. If you adjust for inflation the corresponding 2022 price would be $26.92.
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.one-electron.com/Archives/Tube/Tung-Sol/Tung-Sol%201959%20OEM%20Price%20List.pdf
https://www.in2013dollars.com/us/inflation/1959?amount=2.71
Also interesting is that four different factories are listed. Many Tung Sol tubes have the number 3 on top of the tube and I thought that it could be one of the factory codes, but in the price list they all use letters.
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Flisker
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Yea... I was trying not to comment on it
keanej6
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It's close, but i prefer the clear top vs the chrome top.
mordy
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Went through my stash of RCA 6AS7G tubes. 10 tubes from 1953 to 1972. No cleartops and no Chathams.
One pair is labeled Sylvania with a code YCE - don't know what it means.
One pair is labeled Sylvania with a code YCE - don't know what it means.
Alson Chua
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which is the most wide soundtage and holograhic sound among all the tube? 6AS7G, 6080, 5998 and 421A? i dont really like too warm as i've used to the Winged C 6h13C sound.
Flisker
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I don't have 421A's, but from the rest the best to my ears are for sure 6AS7G GECs.
Interesting note on this question might be, that Euphoria doesn't really have massive soundstage when compared to WA2.
Also I found the russian tubes to be quite weird, good bottom end but that was about it. And soundstage being quite small.
Alson Chua
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I read from somewhere else, someone said Winged C has wider soundstage than GEC 6AS7G. so i wondered does TS 5998 stage is wider/bigger?
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