I think the issue is in shipping... When, (not if), the shipper drops
your K3 to the ground from 4 or 5 feet up, and the rig stops with a 20G
or 30G, (or more), pulse at end to motion, the weighted knob then
becomes a rather good looking hammer hitting the encoder shaft... Never
a good idea...
If someone has a definitive answer to this, I would love to see it...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 2/17/21 3:32 PM, Jim Rhodes wrote:
Wayne and Eric have stated numerous times here on the reflector that
weighted knobs should not be an issue on the encoders, I have been using
them for years (although not heavily or even daily due to travel for work)
and have never had an issue,
On Wed, Feb 17, 2021 at 4:14 PM Charlie T <[email protected]> wrote:
I fully agree. I would NOT put a weighted knob on any electronic tuning
mechanism, unless of course it was designed for it.
Lots of Collins guys like to install those weighted tuning * knobs on their
S-Lines, which were NOT made to take excessive extra wear caused by the
very
heavy knob.
73, Charlie k3ICH
* The "weighted" Collins knob actually has the outer skirt replaced with
one
made of solid brass which is painted satin black to match the standard
Bakelite knobs.
It was never intended to be used on the regular 200 kHz tuning via pinch
roller, S-Line but was designed to smooth-out the klunky tuning in their
51S-1 receiver.
It does great for that.
-----Original Message-----
From: [email protected] <[email protected]>
On
Behalf Of Morgan Bailey
Sent: Wednesday, February 17, 2021 4:38 PM
To: Hank Garretson <[email protected]>; [email protected]
Subject: Re: [Elecraft] Big Knob Fail
One of the problems with the knobs is that sometimes, people change the
injected molded knob out 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.
This has been discussed many times in the past on this forum. It sounds
like
his main frequency control device is worn out/damaged and will need
replacement. I would continue to call Elecraft until I get through to a
technician and most likely have it sent in and fixed.
I wish your friend well in getting his rig fixed. Withdrawal is a bummer.
73, Morgan NJ8M
On Wed, Feb 17, 2021 at 3:10 PM Hank Garretson <[email protected]> wrote:
My buddy Kurt, W6PH, who is not on the list, has a K3S. Recently the
VFO knob has been intermittent and it is now total fail. Does not
change frequency. When he goes to CONFIG or MENU, VFO knob does not
change anything. All other knobs and buttons work including VFO B.
Kurt called Elecraft support and was directed to voice mail.
Any ideas?
73,
Hank, W6SX
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