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Dating of 4 6CS7 (NOS) tubes from Sylvania [message #96577] Wed, 29 March 2023 06:03
kasperbergholt is currently offline  kasperbergholt
Messages: 32
Registered: August 2021
Location: Copenhagen, Denmark
Baron
Clever people,


After a couple of weeks' waiting time, my first four 6CS7 (NOS) tubes (for my Laben CS600 amplifier) arrived yesterday by mail from the US. I think they're beautiful. My plan is to get 3 to 4 good quads - if not exceptional - so that I have enough for a lifetime. Estimated lifetime is often said to be in the 10,000 hours range, perhaps.

I'm looking for a bit of history of these - e.g. how old they are.

Here are som pictures:

https://bergholt.net/wp-content/uploads/2023/03/sylvania-6cs7-nos-tubes-12.jpg

https://bergholt.net/wp-content/uploads/2023/03/sylvania-6cs7-nos-tubes-11-1.jpg

https://bergholt.net/wp-content/uploads/2023/03/sylvania-6cs7-nos-tubes-10.jpg

https://bergholt.net/wp-content/uploads/2023/03/sylvania-6cs7-nos-tubes-6.jpg

https://bergholt.net/wp-content/uploads/2023/03/sylvania-6cs7-nos-tubes-4.jpg

https://bergholt.net/wp-content/uploads/2023/03/sylvania-6cs7-nos-tubes-3.jpg

Some additional images here:
https://bergholt.net/6cs7-sylvania


Huge thanks in advance,

Kasper
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