The Elecraft Modifications/Updates pages indicates the modification
was added to production starting approximately S/N 2362. You can
download the documentation for the modification and compare it to
your rig.
73,
... Joe, W4TV
On 5/28/2010 4:30 PM, Dave Anderson, K4SV wrote:
> Hi All,
>
> I have a a Tokyo High Power 1.1KX amp and would like to know if my K3
> SN 2704 has this ALC modification installed already? Is there a
> magic place to look this up?
>
> Thanks in advance,
>
> Dave Anderson, K4SV Tryon, NC 828 777-5088
>
> www.K4SV.com
>
>
>
>
>
> ________________________________ From: Phil& Debbie
> Salas<[email protected]> To: [email protected] Sent: Fri, May
> 28, 2010 11:55:54 AM Subject: Re: [Elecraft] ELECRAFT TO TOKYO
> HY-POWER 2.5
>
> The THP2.5 uses a regular 15-pin D-connector, whereas the K3 uses the
> 15-pin HD D-connector. Nothing special needs to be done, other than
> finding the pin outs from the manuals. The THP 2.5 even has pull-up
> resistors so early K3 radios will drive the band data input just fine
> (NOT the case with the THP 1.5, where you need the K3 pull-up mod).
> If you plan on using ALC, you do need the K3 negative-going ALC mod
> if you have an early K3.
>
> Phil - AD5X
>
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