Antenna rotors? OMG! Does anyone use those these days? Cable and satellite seen to have made that a dinosaur. At my parents' house, we had a rotor on top of an antenna tower. We could watch Chicago, Milwaukee, Rockford, Madison, and St. Joseph, MI, simply by changing the position. 3 states are represented. As I recall, channel 3 had a couple different channels, depending on the rotor position.
I also persuaded Dad to get out his "fish tape." Together, we installed wall plates and wired several rooms. It was an early version of multi-room, multi-zone operation. Today, the B&K on my main system and Denon in the bedroom are wired together as each others' Zone 2. The Denon has two extra channels of amp not being used, that could be used for another Zone. It's 110 watts x 7, and can be split into 110 x 5, and 110 x2.
Sorry if this is a bit off topic.
The Telefunken is the coolest, most unusual receiver I've seen from that era. And I had been selling hi-fi, beginning in '73. Leave it to the Germans to build something WAY ahead of its time. Too bad Quad was dead when this came out.
I worked at Pacihic Stereo, which was the biggest US chain back then. In '78, we had NO Quad product in our store whatsoever. And we were the #2 volume store in the 110 store chain. We carried lines and products that none of our other stores did. Still, I don't recall anyone even asking about Quad at that time. Sad, especially for a Quadrophile like me. Since 2ch stuff was flying out the door, and I was making great commissions, I wasn't too heartbroken.
The flyer doesn't state a synthezised tuner, only a digital readout. It also functions as a clock.
And you can equip the receiver with an additional electronic for an antenna rotor.
-Kristian