Thanks, Drive-In Freak:
The rarest of the Superadios is one of these...
It's a model #3-5268, and yes it is a Superadio. All in all there were four Superadios of this type:
The Super Stereo (3-6000b)
Supradio With Tape (3-5280)
And another really rare one that I'm looking for at the moment. Sorry to hold back on everybody but I lost mine in the fire, and I want another one bad. Not to be selfish but when one comes up on eBay (and they rarely do) I'm snagging it. I hope you understand.
Not may people know about these four models for some reason, but rest assured they are the real deal. They have the same tuner circuit right down to the t.r.f. design, ceramic filter, IF stages, six gang open air caps, and antennas. Performance? Exactly the same as the Superadio 1 and 2.