I've often wondered if the threads in the batch of knobs that tend to split were incorrectly tapped with a taper tap instead of a straight tap.
A taper tap would not be able to run fully through the set-screw hole due to hitting the opposite side of the shaft hole. This would result in a tapered thread that would force the knob apart as the straight set-screw is screwed in. It would be a hard-to-catch error on the part of the vendor of the knobs that even they themselves or the employee that did the actual tapping may not have been aware of. 73! Ken - K0PP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
