Quote:
Originally Posted by Argus25
As noted on another thread I would go for Ruby brand myself, all their rectifiers I have tested and used have been good. I'm not sure where these are sourced, but whoever made them did a very nice job ...
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An internet search for Ruby and Shuguang returns a lot of sites, largely independent of one another, claiming that Ruby is one of the brands that the Chinese Shuguang factory supports. This looks very plausible. The Golden Dragon valves are also made by Shuguang and my experience was that their GZ34 was strong too.
Cheers,
GJ