arrrghh! It's a Vampyr duplex!!!
Always wanted one of these.
Use the link to see Gerrit's collection in Bremerhaven for other releases of this rare build of a vacuum. It was called "Vampyr duplex" (or TK in later years, short for "Teppichkehrer" = sweeper vac). "Duplex" was for the two motors in it.
It was twin-motored, a little motor in the lower part of it, driving the brush roll (directly behind the brush roller was the bag compartment, so no major losses through lengthy suction paths, a sealed fabric bag holding the paper throw-away bag), the main motor was a dual-fan blower of 650 W in the upper part of the machine.
See the two toggle switches on top of the machine? One was the major on/off (suction), the other one the (additional) brush roll on/off.
"Intensiv" in the name meant: Extra power surge switch for stubborn situations: At the top end of the long handle was a ring-shaped acuator close to the hand grip: You twist it to the right with your thumb and off you go with some extra power (more watts, more speed).
The actual switch of course was in the motor base unit (underneath the handle thread socket), the long handle having an inner metal bar or "shaft" to turn that switch on once you push the ring lever to the right. (might have been some extra 200 watts or so, if I remember this right)
Marvellous machine, great suction too, as they used regular canister vacuum motors in it. Suction-plate-connector hose and a full tool kit came with it as well.)
Colour design: AEG used white and "burgundy" red at the end of the sixties and with the introduction of "Intensivstufe" (= power surge option) those special models got that odd pea-soup-like "green". Later in the 70ies this screaming orange was prevalent for almost anything (along with cappucino-beige and stale-coffee-brown...)
Unfortunately the "duplex" uprights were discontinued in favour of cheaper single-motored uprights with top-filled bag (very much like the low cost "Fanthom", "Koblenz", "Progress", "Fakir" and other similar models in the US)
Too bad this ebayer ships to UK only :-(
Hope this helps.
Joe
http://www.vorwerk-museumprivat.de/157045.html