[Elecraft] Big Knob Fail

[Charlie T]

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: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Morgan Bailey
Sent: Wednesday, February 17, 2021 4:38 PM
To: Hank Garretson <w6sx at arrl.net>; Elecraft at mailman.qth.net
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 <w6sx at arrl.net> 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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