1 Sylvania 55 Vacuum Tube -RARE Globe Style 1930’s Triode-DuoDiode for AM Radios
The 55 is a receiving triode / duodiode. There are scratches on the base. Triode section reads 40 – min. 1 Sylvania 55 Vacuum Tube. Diode sections read 54/52 – min.
1 RARE Globe Style Sylvania 39 Vacuum Tube – 1930’s Vintage for AM Radios
The 39 (aka 39/44) is a receiving pentode with 5-pin basing. It is used as an RF amplifier in 1930’s and 1940’s radio receivers. Hickok TV-7D/U test reads 37. This Sylvania tube is from 1930's USA production.