Anybody have an idea what this is?

[Nolan Woodbury]

Currently listed on the 'Bay:

http://cgi.ebay.com/Vintage-ZENITH-S...QQcmdZViewItem

Without a model number it's hard to figure, but in one shot there's a group of tubes next to what appears to be a good sized, layered-design transformer. Or is that a circuit board? Could this be a carryover/hybrid set? The cabinet appears to have Zenith’s ‘solid state’ 60s styling, and note those twin 8” speakers! That rocks.

I'm interested to read the collective wisdom on this. I'm interested in it-