K3 external ALC to phono

[K2QI]

Dear group,

 

If I wanted to make an external ALC cable for use with a linear, do I just need to solder pin 15 to phono center, and pin 12 to the screen beneath the phono cable’s sheath for common?

 

73,

James KC2UEE

______________________________________________________________
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

[Don Wilhelm-4]

James,

The answer is yes. However, until recently the K3 did not use the
negative going ALC like is provided by most amplifiers. Be certain your
K3 contains the External ALC mod if you are using an amplifier that
provided negative going ALC.

By the way -- Elecraft strongly recommends that external ALC *not* be
used to control the amplifier power level because it produces excessive
IMD products.

73,
Don W3FPR

James Sarte wrote:

>
> Dear group,
>
> If I wanted to make an external ALC cable for use with a linear, do I
> just need to solder pin 15 to phono center, and pin 12 to the screen
> beneath the phono cable’s sheath for common?
>
> 73,
>
> James KC2UEE
>
>

______________________________________________________________
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