[Elecraft] Elecraft knob finger dimple

[Stuart Rohre]

Standard electronic six foot racks, and network open frame racks for
equipment have standard 10-32 tapped holes in the frame edges to mount the
front panels of rack mounted equipment.  All the big distributors carry
these racks, (Newark, Allied, etc.) and carry the kits of 10-32 oval head
and sloped sided bolts.  To make these flush to a panel; there is used a cup
washer, a dished out bowl like washer.  These come in nylon white or black,
and to cover the nylon, is a trim chrome washer.  The dish shaped black
nylon type for 10-32 hardware makes a good finger spinner for a knob, when
expoxied to the knob face.