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- Apr 20, 2016
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I had a couple of black plate Tungsol 6550s on loan for a while and thought they were great, one of my favorites.
Yeah, the black plates are cool. All of the vintage Tung-Sol 6550s are good, but the black plates are getting hard to find/pricey. My second gen black plates with side D getters are one of the few tubes I'll probably never find a backup for. I tend to use my 3-hole 6550s and save these, which is sort of silly.