(1) Tested Strong Philco 1X2A Tube.
Date Code 5052.
The 280 EIA code indicates that this tube was made by Raytheon for Philco.
The wording is partially worn but still legible.
This tube tests as NOS.
Tested on a calibrated Hickok TV-10 military tube tester and exhibiting no shorts at 1600 where 800 is minimum pass/good.
