[Elecraft] VGA cable to Elecraft amps

[Bob Wilson, N6TV]

That's almost right.   You cannot use a VGA cable with the Y-BOX or any
Elecraft radio because they almost always short too many pins to ground.or
to each other.

A straight 15 pin M/F (non-VGA) extension would have worked OK to extend
the Elecraft ACC cable.  I supply these with the Y-BOX.  I can also obtain
longer lengths.  The Y-BOX transforms standard 15-pin straight cables (not
VGA) to KPAK3AUX equivalent, plus some extras like powering on the amp.
from a K3 or K4 macro, or optionally opening the keying line so that an
external device like a SteppIR controller can protect itself from high
power while it is moving.  The "Key Line Interrupt"  gender changer
supplied with the KPAK3AUX cables is not needed with the Y-BOX since that's
built into the Y-BOX as a jumper option.

73,
Bob, N6TV
https://bit.ly/Y-BOX


On Sun, Sep 19, 2021 at 5:46 AM Eric Norris <norrislawfirm2 at gmail.com>
wrote:

> I must point out that N6TV's Serial and Y boxes can be configured to use
> VGA cable between K2/K3/K4 and Elecraft amps.  He does the hard work, and
> his support is fantastic.
>
> 73 Eric WD6DBM
>
> On Fri, Sep 17, 2021, 7:23 AM Jack Brindle via Elecraft <
> elecraft at mailman.qth.net> wrote:
>
>> VGA cables are incompatible with the KPA500 and KPA1500. You will need a
>> straight-through cable. BUT, you also need some pins removed. The power pin
>> of the K3 is not compatible with the power pin of the KPA500 or KPA1500,
>> and will result in the problems you have seen.
>> The cable is described in the KPA500 manual, rev E1 on page 45. I’m not
>> sure where it is in the KPA1500 manual, but I would be surprised if we
>> didn’t include the same table there.
>>
>> 73,
>> Jack, W6FB
>> Elecraft Engineering
>>
>> > On Sep 17, 2021, at 7:47 AM, Jim McCook <w6ya at cox.net> wrote:
>> >
>> > Now I see what's going on.  Originally I used the Elecraft cable
>> between the K3 ACC and the KPA1500 and everything was OK.  The K3 could be
>> powered down normally.  When I moved that K3 to a spare position, that
>> cable wasn't long enough, so I ordered an extension VGA cable.  This is
>> when the problem occurred.  Apparently the extension is the problem withh
>> pin 8. Will see what Elecraft Support says.  73, Jim W6YA
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