Matched Pair Sylvania Number Type 59 #59 Vacuum Tubes Engraved Bases Zenith NOS NIB 34/34 and 38/41 where minimum

34/34 and 38/41 where minimum (65%) is 25/25 and 100% is 38/38

Etsy will indicate the quantity remaining

Flashing Quality: good (for this type

an anode radiator for cooler operation and longer tube life and a banded-cross top mica spacer

Matched Pair Sylvania Number Type 59 #59 Vacuum Tubes Engraved Bases Zenith NOS NIB 34/34 and 38/41 where minimumThis beautiful gray and silver matched pair of type Sylvania type 59 tubes was tested our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 73 while Tube Two measured 74 where minimum (65%) is 50. These tubes have mica snubbers for increased stability and lowered microphonics; sheet getters; outstanding flashing; anode radiators for cooler operation and longer tube life; engraved bases and