05-18-2014, 07:38 PM
When introduced in June 1932, the radio definitely would have had a full complement of the globe style tubes. 1933 was the time of changeover to the ST style, and tube production gradually switched over fully to ST as the year progressed.
I have a few globe 44's with 1933 date codes, so they were still being made that way into the early months of 1933. I have seen globe 37's but they are quite scarce. Its possible that in late production of the 15X there might have been a mix of globe and ST style tubes installed.
I have a few globe 44's with 1933 date codes, so they were still being made that way into the early months of 1933. I have seen globe 37's but they are quite scarce. Its possible that in late production of the 15X there might have been a mix of globe and ST style tubes installed.
