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RE: Tungsol 6550 - two dark plates or a black & a grey one ?

As I said in my response to your post, they ceratinly appear genuine. I do not doubt that they are actual Tung-Sol tubes just that in the dozens of TS 6550 that I own, I've never seen that date code scheme of tubes that are branded "Tung-Sol". Other companies such as Tung-Sol 6550s branded RCA? Yes.

Quite honestly I've never noticed a change in sound as NOS Tung-Sol 6550s have burned-in. Maybe I was just too happy with them to begin with.

Enjoy your Tung-Sols. Your description of how they sound versus old stock GEC KT88 and Ei-KT90 sounds pretty well identical to my own.
Joe


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  • RE: Tungsol 6550 - two dark plates or a black & a grey one ? - Joe Appierto 14:32:20 09/27/14 (0)

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