[1BionicEar]

I have 2 quads of genuine SED Winged C 6550 tubes for sale.
SED quit making tubes in 2012.

One quad has excellent logos with matching 01 02 date codes and they come in their original blue boxes.
Tubes test at 102% of new specification on my Sencore tester.
Box flaps are a bit rough, but tubes are outstanding.
$325 plus shipping for this almost NOS quad.

The second quad has no logos remaining and come in white boxes.
Tubes test at 100% of new specification on my Sencore tester.
Internal construction is exactly the same as the quad with logos. See picture of 2 tubes for details.
$200 plus shipping for this quad.

Thanks for your interest.

[1BionicEar]

PRICES REDUCED!