[Arran]

It sounds like someone was picking through their junk box for spares at one time if it had a globe/balloon style #45 in there. If it's the set I'm thinking of there was also a Lafayette version with six #45s in it, ST style though since it's from 1935-36 or so. I also heard that there was something different about the #45 tubes used in Silvertones verses the ones typically found in something like a Philco 96 or a Majestic model 90, fillament current I think. It was probably built by Colonial Radio, or Continental/RPC/Admiral, I think that Sears bought out Colonial and had them build most of their sets, Stewart Warner built some of the others.
Regards
Arran