I have a heavy-ish 73crc knob on my K2, and I prefer the feel with the felt washer completely removed. It doesn't drift when bumped although it could be that I have an especially stiff encoder. The finger dimple is too small for my stubby finger, so I stuck an Elecraft-supplied finger dimple over the top, making it a bit of a Frankenstein knob. So far the encoder shaft remains unbent, touch wood.
73 de Paul ZL3IN On 27/05/2011 11:13 a.m., Don Wilhelm wrote: > I cannot say for certain because I have not seen the knob. > I do have a concern for knobs that are heavy and do not fit properly > against the felt washer. > For one thing, the heavier knob spaced out from the front panel will put > extra downward stress on the encoder shaft - that is canceled out if the > new knob is in full contact with the felt washer. A bent encoder shaft > will create binds when tuning. > Secondly, a knob with no slight friction will allow the VFO to drift > when you tap on the operating table or just "breathe" on the knob. You > must have some friction on the knob for the VFO to be stable. ______________________________________________________________ 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
