R6VB before 3-1996 (single dial)
120 volt, 1 phase, 60hz, variable speed 370 - 3450 rpm. For Machines manufactured before march of 1996 with serial numbers up to R6V001328 also, RV001351 to R6V001359, R6V001361 to R6V001370, R6V001386 to R6V001395, R6V001534 to R6V001545