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The advert speaks of "disc" motors. I'm no expert but I think they mean printed circuit motors which are quite thin from front to back. Neodymium magnets allow for smaller sized motors for the same power these days. The Thorens advert speaks of an external power supply which of course saves space in the case, and then of course today's electronics can be made much smaller than previously. An early "compact" reel to reel machine which could handle 10.5" reels was the Revox A77. I suspect with modern motors and electronics it could be made even thinner and lighter but of course the size of the 10.5" reels limits the minimum dimensions of the front panel. As an old timer, when I have to move my machines or service other peoples' there are times when I'd love to work with smaller, lighter machines! Tim. ----- Original Message ----- From: "David Breneman" <[log in to unmask]> To: <[log in to unmask]> Sent: Saturday, April 13, 2019 1:11 AM Subject: [ARSCLIST] AW: [ARSCLIST] Thorens TM 1600 ¼" Tape Machine Announced The machine in the picture is no "thicker" than the turntable. What kind of motors would fit in such a small case? I'm not aware of a recent revolution in motor design. Surely they aren't using turntable motors. Or maybe... -- David Breneman [log in to unmask] --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus