[Elecraft] AF/RF Knob situation - joined the club Me Too!

[Bill W5WVO]

Don Ehrlich wrote:

> ...Not so, and obviously not a problem of a single batch of
knobs...

I think there has been some misunderstanding here. My reading of
Eric's explanation is that the KNOB MANUFACTURER screwed up in a
single batch (or perhaps a few consecutive batches) of knobs.
Typically, with parts made in batches, all the batches go into the
same bin after initial inspection to make sure they meet specs,
and are subsequently shipped out from the mixed bin, irrespective
of the original manufacturing batch they came from. This would
mean that, out of a given lot shipped to the customer (Elecraft),
a few of the knobs in each shipped lot will likely be from the bad
manufacturing batch until ALL knobs from the bad manufacturing
batch(es) have been used up (or the problem is discovered and all
existing knobs are purged). This could potentially take a LONG
time, and explains why some end users have in the past received
two different shipments from Elecraft of knobs that turned out to
be bad.

According to Eric, the problem was discovered months ago and there
are no more bad knobs in Elecraft stock, only newly-manufactured
knobs with the fiberglass fill.

Bill W5WVO