Hi Andy, You are correct. Orthophonic Edisonic I always thought it was a way to take advantage of the Orthophonic reproducer name while using Edison's name.Steve > I believe the Dance reproducer would have had the collar on top of > the upper shell, joined to a thick flange on the elbow/arm. The > counter-weight on the Dance reproducer and the Edisonic are > comparable. The Edisonic was introduced around 1927? (I think) and > in addition to the heavier counter-weight had a spring-loaded stylus > bar, to get as much volume out of the Diamond Disc groove as possible > and compete with the fuller sound of the big acoustic Orthophonic > Victors, Viva-Tonal Columbias and Brunswick Panatropes that had the > exponential horns and more responsive sound boxes.> > I don't know why they called it Edisonic (which is not necessarily a > conjunction of Edison and electronic-- Sonic has its own meaning) > unless possibly they were making reference to it being the ideal > companion to the electrically recorded Diamond Discs.> > Andy Baron>