A very rare Type 183/483 globe tube, marked Philco made in USA (engraved base). This is virtually a type 45 tube with a 5v heater. Tube has been tested on a calibrated TV-7A/U tube tester.

Results (no gas, no shorts):

54/38

*** I Will Ship International ***

Please see my other tube and audio related listings. I'll be adding new items daily, so be sure to follow me. I'll gladly combine shipping. Thx!