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Peter Wieck Peter Wieck is offline
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Default New Matched Quad Groove Tubes GT-6550C Tubes

On Aug 7, 10:53 pm, "maxhifi" wrote:
What factory makes these? They look strange for a 6550, with the plastic
base and all


Yeah.

Probably Chinese. Lots-O-Smoke and mirrors with the fancy labels and
so forth. But they are definitely rebadged to by/for GT, and my
(albeit very limited) experience with them is they source primarily
from China.


http://hereford.ampr.org/Tube4.php?tube=6550

calls out a Metal Sleeve on the base, but this is a 6550 "C"...
suggesting "cheap". I would guess that the $5 opening bid is about all
they might be worth in the end.

Peter Wieck
Wyncote, PA