Elecraft

Attempt #3 - Any larger more efficient heat sinks for the K2/100 Lid PA?

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Paul Metzger

Attempt #3 - Any larger more efficient heat sinks for the K2/100 Lid PA?

Sorry, my email GUI by default was sending emails in HTML which does not get processed by the reflector here. Thus why there was previously no information except for title in my previous posting attempts. Noob here.

Here is my original email as I had composed it.

--------------------------------------------------

I quit using my Elecraft K2/100 when I kept getting burned on the PAs heat sink. This is both before and after having sent it in to get a check up.

I would like to place this radio in my emergency radio go box, but instead of adding fans which will just suck my batteries dry pre-maturely, is there a larger more efficient heat sink available for this amp (radio lid) which won't lead to too much macgyvering?

Thanks for any assistance you may be able to provide in advance !

As a note, I'm using an external KAT100 and have always kept the match down. I always use mono band resonant antennas which I'm anal about tunning dead on and not operating into an antenna with a match anything more than a 1.5:1, and that's before connecting the KAT100 antenna tuner to it.

Please, if anyone can provide me with a larger heat sink / solution to cool down this radio, I would be extremely grateful !

Paul Metzger - K6EH

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Kurt Cramer-3

Re: Attempt #3 - Any larger more efficient heat sinks for the K2/100 Lid PA?

Paul, What modes, what power level? Does the internal fan run on high?

Kurt, W7QHD

On Sat, Sep 27, 2014 at 11:06 AM, Paul Metzger <[hidden email]> wrote:

> Sorry, my email GUI by default was sending emails in HTML which does not
> get processed by the reflector here. Thus why there was previously no
> information except for title in my previous posting attempts. Noob here.
>
> Here is my original email as I had composed it.
>
> --------------------------------------------------
>
> I quit using my Elecraft K2/100 when I kept getting burned on the PAs heat
> sink. This is both before and after having sent it in to get a check up.
>
> I would like to place this radio in my emergency radio go box, but instead
> of adding fans which will just suck my batteries dry pre-maturely, is there
> a larger more efficient heat sink available for this amp (radio lid) which
> won't lead to too much macgyvering?
>
> Thanks for any assistance you may be able to provide in advance !
>
> As a note, I'm using an external KAT100 and have always kept the match
> down. I always use mono band resonant antennas which I'm anal about tunning
> dead on and not operating into an antenna with a match anything more than a
> 1.5:1, and that's before connecting the KAT100 antenna tuner to it.
>
> Please, if anyone can provide me with a larger heat sink / solution to
> cool down this radio, I would be extremely grateful !
>
>
> Paul Metzger - K6EH
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Paul Metzger

Re: Attempt #3 - Any larger more efficient heat sinks for the K2/100 Lid PA?

Phil Wheeler-2

Re: Attempt #3 - Any larger more efficient heat sinks for the K2/100 Lid PA?

In reply to this post by Paul Metzger

I've never had any such heat issues with my
K2/100, Paul. I wonder if there's some other issue
you need to address?

Are you operating in a mode with a very high duty
cycle (RTTY, PSK31) at more than 30 Watts or so?
That could lead to higher than normal temps.

73, Phil w7ox

On 9/27/14, 11:06 AM, Paul Metzger wrote:

> Sorry, my email GUI by default was sending emails in HTML which does not get processed by the reflector here. Thus why there was previously no information except for title in my previous posting attempts. Noob here.
>
> Here is my original email as I had composed it.
>
> --------------------------------------------------
>
> I quit using my Elecraft K2/100 when I kept getting burned on the PAs heat sink. This is both before and after having sent it in to get a check up.
>
> I would like to place this radio in my emergency radio go box, but instead of adding fans which will just suck my batteries dry pre-maturely, is there a larger more efficient heat sink available for this amp (radio lid) which won't lead to too much macgyvering?
>
> Thanks for any assistance you may be able to provide in advance !
>
> As a note, I'm using an external KAT100 and have always kept the match down. I always use mono band resonant antennas which I'm anal about tunning dead on and not operating into an antenna with a match anything more than a 1.5:1, and that's before connecting the KAT100 antenna tuner to it.
>
> Please, if anyone can provide me with a larger heat sink / solution to cool down this radio, I would be extremely grateful !
>
>
> Paul Metzger - K6EH
>

Paul Metzger