Zenith also made un its with two tome arms: <http://oak.cats.ohiou.edu/~postr/bapix/Zen48RP.htm> <L> On Dec 2, 2009, at 12:47 AM, Michael Biel wrote: Steven C. Barr wrote: > IIRC, GE put out some models which had two arms...one to play 78's > and one > to play LP's...?! No, it was Philco that did that, and it was in 1948. The 78 arm was usable for the changer mechanism, but the LP arm was single-play only. Rather a stupid idea, but they were in a hurry to get them out! Philco had single-arm 2 speed changers by the end of 1948, just in time to have to re-design them into 3-speed changers. I have all the catalog sheets and repair manuals for this whole series, and have a couple of unmounted examples.