Hello Mark,
I think the fan is thermally controlled when it is installed as
directed. Only runs when needed.
If you connect it to the 12 volt jack, it will run all the time the
radio is on, even if not necessary.
-73-
-Lee-
On 15 Nov 2002 at 9:37, Mark Erbaugh wrote:
> Has anyone installed the optional fan for the new Argonaut V? The
> instructions have you opening the radio and running the power lead
> through a grommet (in which you have to cut a hole) to a mating jack
> inside. However, there is 12v available to a phono jack on the back of
> the radio. This jack is only powered when the radio is on. To me, it
> seems a simpler place to get the power for the fan - you would just
> have to modify the plug on the fan power lead. This would make it
> easier to remove the fan when not needed.
>
> Can anyone see any reason not to use this 12v jack instead? If you
> needed power for another accessory, you could always build a Y cable.
>
> Currently, I hooked up an external fan (an only computer fan) and have
> that blowing on to the back of the radio - I found that after a 5
> minute PSK31 transmission the heat sink was pretty warm.
>
> 73,
> Mark
>
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