in my first stage of this attempt to repair a hallicrafters s120 , I found that this on/off volume switch was used to power up straight from line cord. no fuse . I decided to remove and clean contacts and wiper on the inside with some contact cleaner . upon doing this the on /off switch stopped working and let the shaft rotate too far around. then would not return to off ... no click off . opened the switch up to find that the finger inside that goes into the switch was worn bad enough to miss the slot or slip by the slot . I seen a technique to fix plastic with super glue and baking soda . ? was wondering if this just way too much work ,and be better off trying to find a replacement . any idea where to find a replacement with the shaft as long with internal switch . shaft looks to be 3" to 3.25" long this is listed in the part list as a 2 meg ohm 30% 1/8 watt variable, volume control switch with internal switch. ya guess im stuck trying to fix that finger . got some small files to fine tune the repair, might take longer than i hoped to get this radio up and running.