[NostalgiaRadioTime]

An observation I made when restoring the Philco M-15 album length 33 1/3 rpm record player is that it uses the exact same motor and idler wheel as the standard 78 rpm player used in the popular 1201 models. The difference being the 78 rpm uses a 1/4" diameter drive pin off the motor (which drives the idler wheel) and the 33 1/3 rpm uses a (roughly) 1/16" diameter drive pin. Don't know if it applies here but in that case, the diameter of the drive pin or shaft controls the turntable speed.