[Elecraft] KPA1500 vs SPE Amps

[Ken K6MR]

Obtain input splitter and output combiner units from W6PQL.  Install these into boxes with connectors.



Connect the AUX ports on each amplifier in parallel using a HD15 Y cable.



If you want a full 1000 watts out on the higher bands, modify the KPA500s to remove the input attenuator.  This allows a single K3 to drive both amps to full output even on 10 meters.



Connect inputs to the splitter, outputs to the combiner using (obviously) equal length coax to main phase relationship.



Some assembly required but not rocket science.



Ken K6MR



________________________________
From: RALPH TURK <w7hsg at comcast.net>
Sent: Tuesday, February 12, 2019 6:23:12 PM
To: Ken K6MR; Fred Jensen; elecraft at mailman.qth.net
Subject: Re: [Elecraft] KPA1500 vs SPE Amps

SHOW HOW/EXPLAIN ETC.  I AM VERY INTERESTED.
RALPH,AFA9RT    I AM NOT SHOUTING KEY BOARD STUCK



> On February 12, 2019 at 7:06 PM Ken K6MR <k6mr at outlook.com> wrote:
>
>
> “Actually, I suppose one could drive 2 KPA500's
> from one K3 and sum the output for a virtual KPA1000.”
>
>
>
> Yes you can.  I have been doing this for the last 3 years.
>
>
> Ken K6MR
>
>
>
> ________________________________
> From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> on behalf of Fred Jensen <k6dgw at foothill.net>
> Sent: Tuesday, February 12, 2019 2:45:49 PM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] KPA1500 vs SPE Amps
>
> At the same time? [:-)  Actually, I suppose one could drive 2 KPA500's
> from one K3 and sum the output for a virtual KPA1000.
>
> 73,
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> On 2/12/2019 1:44 PM, Dave wrote:
> > Also, I’m wondering if anyone has run their KPA500 and a KPA1500 off of the same K3? If so, how did you set it up?
> >
> > Tnx es 73,
> > Dave N8AG
> >
>
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