Strange and unusual tuning capacitor

[Mike Watterson]

It will be MW + SW.
May or may not have more than one band or bandspread.
There are over 4000 Sears/Silvertone models

Six tubes:
RF preamp, Mixer/Osc, IF, Det/Preamp, Audio out, rectifier. (Most likely as it's 3 gang MW + 3 Gang SW)
OR
Mixer, Osc, Det/Preamp, Audio out, rectifier. (less likely)

I can't find any Silvertone / Sears using 7A7 though, which is Loctal. 6A7 maybe.

e.g. http://www.radiomuseum.org/r/sears_roeb_..._4612.html