Svetlana Tubes Winged C 6550 NOS

I am selling most of my personal stock of Winged C NOS vacuum tubes.

This pair is 2011 date coded, flat getter design.  These were hand selected for me by the original highly reputable tube seller (Radio Electric Supply). 

Tube 1
Date Code 1115
Plate Current 55.70
Gm 5.59

Tube 2
Date Code 1115
Plate Current 56.90
Gm 5.24

This pair are tightly matched at 2% plate current and within 6%  transconductance [Gm] (please view pictures of the boxes).  Power tubes are matched by plate current.

Tested on a Maximatcher tube tester.  I double checked them on mine and they match.  Plate current matched to 5% or less is considered "platinum" matched.

All of my Winged C 6550 tubes are NOS and as perfect as perfect can be!  All test brand new (as they are NOS), and have been stored in a temperature and humidity controlled storage room.  Please view the pictures. 

These tubes are simply sublime in every way. All were selected for me by the dealers for matching and top performance.

I am selling mine at about the same price for matched pair as many tube retailers are charging for new production stock 6550 vacuum tubes.  Get these magnificent beauties while you can. 

My price is, for obvious reasons, not negotiable. 

I will pack securely with bubble wrap and packing peanuts and ship in the continental USA only via USPS priority shipping, insured, and signature required. 

Shipping fee is $21.

PayPal fee is included in my listing price.

If any questions at all, please contact me at any time. 

See my feedback and buy with confidence.

Thank you for viewing my ad.