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RE: Antique Sound Lab 6550 Tubes - made by ?

They are Chinese, but they are not Shuhguang. At the time these were made, there were quite a few tube manufacturers in China. I can't remember the company, but they no longer exist.
Later ASL tubes were made by Shuguang.

Dan Santoni

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  • RE: Antique Sound Lab 6550 Tubes - made by ? - Blackdog 04:21:32 05/27/20 (0)


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