K3 Knobs

[rfenabled]

(Snip)


The knobs in the bad batch will crack/split with just a slight
tightening of their set screws.  That's what I encountered.  I've
installed many equipment knobs over the years and was careful to not
over tighten the sets screws per Elecraft's instructions.  
Never-the-less the old ones cracked.  Elecraft replaced them and so far
all is well.
END quote:

Amazing, does anyone know the serial number range that these brittle knobs were shipped?

Are we talking about the four identical knobs but not the VFO's?

So far I have had no need to remove or adjust these.

Gary
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[Iain MacDonnell - N6ML-2]

[hidden email] wrote:

> (Snip)
>
>
> The knobs in the bad batch will crack/split with just a slight
> tightening of their set screws.  That's what I encountered.  I've
> installed many equipment knobs over the years and was careful to not
> over tighten the sets screws per Elecraft's instructions.  
> Never-the-less the old ones cracked.  Elecraft replaced them and so far
> all is well.
> END quote:
>
> Amazing, does anyone know the serial number range that these brittle knobs were shipped?
>
> Are we talking about the four identical knobs but not the VFO's?

No, we're talking about the AF/RF gain knobs. The "four identical"
ones don't have set-screws.

     ~Iain / N6ML



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[timjp]

The only knobs I've had trouble with are the smaller AF and RF/SQL
concentric knobs.  I've had to replace twice and hope the current ones hold
up.  And, I might say, I've been very careful to not over tighten.  I'll bet
this problem is (or has been) overcome in Aptos!

Tim K5OI K3 0430 (plus a few other Elecraft products!)
Ruidoso, NM

Amazing, does anyone know the serial number range that these brittle knobs
> were shipped?
>
> Are we talking about the four identical knobs but not the VFO's?
>
> So far I have had no need to remove or adjust these.
>
> Gary
> Sent via BlackBerry® from Telstra
>
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