This thread brings to mind one of the first foray's into stereo I remember. It was a tonearm that became 2 arms at the cartridge end. You put in 2 monophonic cartridges and it used special records - one channel on the 1st half of the LP, and the other channel on the other 1/2. The arm tracked both channels at the same time. It looked like a snake with 2 heads. I believe the arm and the records were manufactured by Cook.
Quadraphonic L P played with a 2 chan. cart.
This may sound like a stupid question since I grew up in the 70's when quadraphonic recordings and equipmnet were around, but as I am getting older my memory is really begining to suck. Anyway, I am interested in purchasing a Japanese quadraphonic recording of rare LP and I can not remember if the cartridges were 4 channel or not. Thus; can a stereo cartridge process the information on the LP at least the front two channels?