Brand Spanking NEW, Single Tubes MINT NOS NIB Sylvania 1950s-60s 6V6GT Black Plate Black Glass. Made in USA. Very desirable early Sylvania production.
Boxes are a bit fragile as expected from the age and era.
Tested and matched on Top of the Line Calibrated
Hickok 580 Lab Grade Tester.
Specify which tube you want in the comments box during checkout.
Tube 1 (Left): 1956 Sylvania 6V6GT Back Plates Black Glass Chrome Dome - 5300 mhos.SOLD
Tube 2 (Middle): 1956 Sylvania 6V6GT Back Plates Black Glass Chrome Dome - 4300 mhos (note - White Box is FAA Sylvania box dated 1965. This came in a Sylvania lot and it is possible that it was put in a wrong box.)
Tube 3 (Right): 1960s Sylvania 6V6GT Back Plates Black Glass Chrome Dome - 5100 mhos.
Single Tube = $50
Sylvania 6V6GT Single Tubes NOS NIB 1950s-60s Blac 
