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In Reply to: Antique Sound Lab 6550 Tubes - made by ? posted by Steve M. on May 26, 2020 at 07:22:29:
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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Follow Ups
- RE: Antique Sound Lab 6550 Tubes - made by ? - Blackdog 04:21:32 05/27/20 (0)