Well gang I still have some gears & knobs left and would like to get rid of them, if you need knobs or gear sets for the following radios please let me know. 4:1 knob & gear set will fit the following radios: 32V-1, 32V-2, 32V-3. 75A-1, 75A-2, 75A-3, 75A-4 ALL OF THE 51J SERIES RECEIVERS KWS-1 TRANSMITTERS Thanks & 73's Please visit my Collins web site. http://users2.ev1.net/~wb7dyw/