[Elecraft] K2 Disable Transmit

[Don Wilhelm]

Lou,

I would suggest the best way to disable transmit for your situation is 
to disable the 8T signal - I would suggest removing Q1 from the Control 
Board.  For added protection to the K2 transmit stages, I would also 
suggest removing the DC voltage from RF Board Q7 and Q8 by removing T3 
and remove RFC4 to take the voltage off Q5 and Q6.

73,
Don W3FPR

On 12/29/2011 9:54 AM, Lou Voerman W2ROW wrote:
> I have an extra K2/10 with pretty much all options except DSP. I also have a
> 9 year old grandson who at least has the potential to be interested in ham
> radio. It occurred to me that I could set up the K2 in his room at home (he
> lives a couple of miles away) and let him do some SWL.
>
> I would need to disable transmit in the K2 so "transmit accidents" can not
> happen. Permanently putting the K2 in test mode would be perfect since he
> could practice CW sending but it is not obvious how I could do that.
>
> The KAT2 would not work without transmit so I was thinking of a low price
> manual ATU with a random wire antenna.
>
> I did a search of the archives and found some previous references but no
> definitive answer. Any thoughts?
>
> Thanks,
> Lou  W2ROW
>
>
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