[QUOTE=nasadowsk;1663625]Well...figured it out.
It's the flyback
So far, the Sam's lists the subs:
Stancor A-8117
Chicago TFB-1
FWIW, the Maggie # is 320026-1
It's also a Thordarson FLY-1.
The Sams sub may be wrong; my Stancor book crosses the Magnavox number to A-8127 and this matches to a Fly-1 and an RCA 211T3.
Best,
Cliff