> I'm surprised that RIGrunner or MFJ or somebody doesn't make a 12V
> distribution system with a remote on/off control that could be
> connected to the K3 switched 12V output.
It's actually a piece of cake. If power for the control relay came
from the external supply and not the the K3 and the relay coil was
controlled by an transistor or FET, one could control the strip with:
1) +12V from the K3
2) +13.8V from most Yaesu rigs (+13.8V RCA or "Band Data" jack)
3) +13.8V from the ACC jack on most Icom rigs
4) +5/+8V from the mic jack of most Icom/Kenwood rigs
5) +13.8V from most Ten-Tec rigs
6) +5V from a computer USB port!
I may even have the design for such a beast around someplace.
73,
... Joe, W4TV
On 5/4/2011 12:54 AM, Alan Bloom wrote:
> I'm surprised that RIGrunner or MFJ or somebody doesn't make a 12V
> distribution system with a remote on/off control that could be connected
> to the K3 switched 12V output. Sounds like an opportunity: Someone on
> the list should market one. Or at least design one and write a QST
> article.
>
> Al N1AL
>
>
> On Tue, 2011-05-03 at 10:01 -0400, Don Wilhelm wrote:
>> The current available from the K3 DC output jack is limited. A PR6
>> and a P3 just about max it out.
>> For those who want to turn multiple 12 volt powered accessories on and
>> off with the K3, drive the coil of a 12 volt relay from the K3 DC output
>> jack and run the power supply feed through the relay contacts. Lots of
>> devices can then be turned on/off with the K3. That is the most
>> sensible solution IMHO, no worry about overloading the K3 12 volt output.
>>
>> A little enclosure to hold the relay and several RCA jacks or other
>> connector of your choice is an easy project to construct.
>>
>> 73,
>> Don W3FPR
>>
>> On 5/3/2011 9:52 AM, Phil Hystad wrote:
>>> On May 3, 2011, at 5:48 AM, R. Kevin Stover wrote:
>>>
>>>> Define "easy".
>>>>
>>>> Run down to Radios Shack a purchase an RCA 1 to 2 port cable or have
>>>> Elecraft re-engineer/re-design the radio?
>>>>
>>> Actually, given what I have seen out of Wayne and Eric, my bet is on the
>>> re-engineer/re-design of the radio as being easier.
>>>
>>> But, I am not suggesting they do that. As for me, I don't concern my self
>>> too much with how things are plugged in. And, turning stuff on from one
>>> switch is not that big of a thing to me.
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>
>
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