30K

This Collins 75A-4 & A-Line Vernier Tuning Knob & 4:1 Gear Drive is P/N 541 6291 00   This is the optional 4:1 Drive and spinner knob for the 75A-4, KWS-1, 32V Series, 51J Series, KW-1, 310B series and 30K-1.  This knob and gear set is...