Using the KPA100 loudspeaker when the KPA100 is remoted

[Sverre Holm-2]

When the KPA100 power amplifier is external to the K2, the KPA100
loudspeaker is unused. I wanted to use it for other rigs that need a
loudspeaker. The minijack connection on the back of the KPA100 can be used
if its internal switch is shorted.

This can be done in a simple way by mounting a male connector and plug in
the unterminated "AF In" connector (J5). The lower pin on the male connector
is soldered to the warm speaker cable. See middle right in the image on
http://www.qslnet.de/member/la3za/KPA100_loudspeaker.html

If the KPA100 is mounted in the K2, J5 is plugged into the K2 main board,
and when it is used stand alone, J5 may be plugged into the new connector.
In this way the KPA100 loudspeaker connection is compatible with the
original design when mounted in the K2 and its loudspeaker can be used for
other rigs when the KPA100 is separate from the K2.

73

Sverre
LA3ZA
http://www.qslnet.de/la3za/
 

_______________________________________________
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

[Stewart Baker]

Clever idea Sverre,

I hate to see components just sitting idle..

73
Stewart G3RXQ

On Sat, 21 Jan 2006 15:49:50 +0100, Sverre Holm wrote:

> When the KPA100 power amplifier is external to the K2, the KPA100
>
> loudspeaker is unused. I wanted to use it for other rigs that need a
> loudspeaker. The minijack connection on the back of the KPA100 can be used
> if its internal switch is shorted.
>
> This can be done in a simple way by mounting a male connector and plug in
> the unterminated "AF In" connector (J5). The lower pin on the male connector
> is soldered to the warm speaker cable. See middle right in the image on
> http://www.qslnet.de/member/la3za/KPA100_loudspeaker.html
>
> If the KPA100 is mounted in the K2, J5 is plugged into the K2 main board,
> and when it is used stand alone, J5 may be plugged into the new connector.
> In this way the KPA100 loudspeaker connection is compatible with the
> original design when mounted in the K2 and its loudspeaker can be used for
> other rigs when the KPA100 is separate from the K2.
>
> 73
>
> Sverre
> LA3ZA
> http://www.qslnet.de/la3za/
>
>
> _______________________________________________
> 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

_______________________________________________
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

[Sverre Holm-2]

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Stewart Baker
>
> Clever idea Sverre,
>
> I hate to see components just sitting idle..
>

Thanks Stewart!

Actually, the loudspeaker in the KPA100 sounds better than the one built
into the K2 also - less resonant. It is probably because of the heavier
baffle.


73

Sverre
LA3ZA
http://www.qslnet.de/la3za/
 

_______________________________________________
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