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K2 (gasp, a real K2 question) KPA100 idea

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jferg977

K2 (gasp, a real K2 question) KPA100 idea

If I install an IC socket for U2 on my KPA100, will there be any adverse
effects? Don't ask why I would want to do this. I would have to admit to more
than the usual stupidity.

73 AI4TO John Ferguson M/V Arcadian

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Don Wilhelm-4

Re: K2 (gasp, a real K2 question) KPA100 idea

John,

As long as you use a good socket, there should be no adverse effects -
all the signals operate near DC or very low frequencies. Long term
there is always more of a chance for oxidation between the chip leads
and the socket than with a properly soldered-in chip, so you may want to
re-seat the chip every 2 to 3 years just to wipe away any possible
oxidation - it really depends on 'the air you breathe' how rapidly
oxidation can develop - the coastal salt air seems to accelerate it.

73,
Don W3FPR

[hidden email] wrote:

> If I install an IC socket for U2 on my KPA100, will there be any adverse
> effects? Don't ask why I would want to do this. I would have to admit to more
> than the usual stupidity.
>
> 73 AI4TO John Ferguson M/V Arcadian
>
>
>
> **************Looking for simple solutions to your real-life financial
> challenges? Check out WalletPop for the latest news and information, tips and
> calculators. (http://www.walletpop.com/?NCID=emlcntuswall00000001)
> _______________________________________________
> Elecraft mailing list
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Alan Bloom

Re: K2 (gasp, a real K2 question) KPA100 idea

In reply to this post by jferg977

A socket will always be less reliable than soldering the IC directly to
the board. You should only do it if you expect you might have to remove
the IC some day.

Al N1AL

On Tue, 2008-09-23 at 13:47, [hidden email] wrote:

jferg977

Re: K2 (gasp, a real K2 question) KPA100 idea

In reply to this post by jferg977

Hi,
that is exactly the reason I would use a socket. this K2 lives on a boat
and is connected to a 23 foot whip and a seawater grounding system and when
it's working is astonishing. problem is from time to time I forget to
disconnect antenna when I'm not using radio and it gets fried by static discharges
through the antenna system. casualties are always the 1N5711s in tthe kat100
and kpa100 AND U2 in the KPA100. I have to assume that even though I'm
installing a ferrite inductor shunt between the antenna lead and ground, I will still
occasionally forget to disconnect anenna and so will get to replace these
components for the perhaps 5th or 6th time. pcb's don't respond well to this
level of remove and replace cycles.

thanks for the thought,

73 AI4TO

In a message dated 9/24/2008 4:18:07 A.M. Eastern Daylight Time,
[hidden email] writes:
A socket will always be less reliable than soldering the IC directly to
the board. You should only do it if you expect you might have to remove
the IC some day.

Al N1AL

On Tue, 2008-09-23 at 13:47, [hidden email] wrote:
> If I install an IC socket for U2 on my KPA100, will there be any adverse
> effects? Don't ask why I would want to do this. I would have to admit
to more
> than the usual stupidity.
>
> 73 AI4TO John Ferguson M/V Arcadian
>
>
>
> **************Looking for simple solutions to your real-life financial
> challenges? Check out WalletPop for the latest news and information, tips
and

> calculators. (http://www.walletpop.com/?NCID=emlcntuswall00000001)
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com

**************Looking for simple solutions to your real-life financial
challenges? Check out WalletPop for the latest news and information, tips and
calculators. (http://www.walletpop.com/?NCID=emlcntuswall00000001)
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