[Elecraft] K3 Caution when using an external monaural speaker

Bob Cunnings bob.cunnings at gmail.com
Sat Feb 14 20:08:41 EST 2009


According to the Enhancements and App Notes page at:

http://www.elecraft.com/K3/k3_app_notes.htm

"This modification is needed for all K3s shipped approximately before
01/12/09 containing either a Revision "XB" or Revision "A" KIO3
board."

Bob NW8L

On Sat, Feb 14, 2009 at 5:41 PM, KC2UEE <kc2uee at gmail.com> wrote:
>
> Hi Ron,
>
> I just ordered my K3 on Thursday.  Do you know if this modification has
> already been phased in to new kits?
>
> 73,
> James KC2UEE
>
>
> Ron D'Eau Claire wrote:
>>
>> Hello David:
>>
>> Wayne asked me to reply since I prepared the application note. Only two
>> resistors are needed, so if you've done the mod using the daughter board
>> locations Wayne originally mentioned, you're all set.
>>
>> The version shown in the app note mimics what Aptos is doing as they
>> modify
>> the boards in inventory. The resistors are in the same place electrically,
>> but they chose to put them on the main KIO3 board instead.
>>
>> We followed that in the application note so it'd be easy to tell if the
>> modification has been made either in the field or at the factory.
>>
>> Ron AC7AC
>>
>>
> --
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> Sent from the Elecraft mailing list archive at Nabble.com.
>
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