1954 Raytheon 19" with 170 sq. inches?

[stromberg67]

I've seen the SAMS folders for similar sets, but it was quite a while ago. The museum referred to has an almost complete collection of folders, and I'll sit down with an index to try to find at least one set using the "mystery tube".
After the Army, I worked for a time at a distributor, and would read folders while eating lunch lol. Saw many interesting things in all those folders.
Kevin