University 6201 coax/tri-ax? driver. Gradually I've reconstructed most of my father's 1957-era system for nostalgic reasons, but still lack the 6201. Eventually I got another speaker and converted his old Garrard 88 to stereo. He gave me all of it when I was about 13, and I've been
screwed hooked ever since.
Special thanks to a STL-area AC member for offering up his father's Grommes pre and amp last year for free. Exactly what I had been looking for!
Still would like to identify and acquire the Fisher FM tuner with multiplex connector he had. Then I'd have gone full circle to the start of the madness.