Even though your s/n is 21, it was not the first K3 kit shipped. I have the first K3 kit shipped, as I assembled the very first one, outside of the beta testers. I also have the original knob and encoder.
Ed K1EP s/n 66 On Wed, Feb 17, 2021, 20:46 K9ZTV <[email protected]> wrote: > K3 serial number 21 (kit no. 1) has carried the 73cnc weighted knobs on > both the main and sub VFOs for more than 13 years of nearly nightly use. > It has been the primary CW rig for 11 Field Days, numerous special events, > and upwards of a dozen Boy Scout outings. The knobs have been twirled by > club members with heavy fists and kids with youthful exuberance. Yet they > continue to provide the smooth and silky feel characteristic of those > weighted knobs used in high end receivers for nearly 100 years. > > If the tuning shafts and encoders are in imminent danger of “angular > momentum and torque” leading to premature wear, my K3 didn’t get the memo. > > Such concerns about non-Elecraft accessories are usually conjectural in my > opinion, if not plain nonsense. > > 73, > > Kent K9ZTV > > > > > On Feb 17, 2021, at 3:37 PM, someone wrote: > > > > One of the problems with the knobs is that sometimes people change out > the stock injected molded knob for a HEAVY machined knob. The mechanism > inside the radio is not built for this type of installation. A rapid spin > with the angular momentum and torque of the heavy knob will wear out the > device. This will require taking the front panel off and replacing the > component. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

