>
> I can answer that one. It is in the equipment manuals. 15V max.
> Some components are rated at that level.


I hope you are saying that the derating for the components was based on a
15V max input.    If there are 15V rated parts on the input rail, that's
not good.

73 de AI6KG




On Mon, Sep 4, 2017 at 4:49 PM, Jack Brindle <jackbrin...@me.com> wrote:

> I can answer that one. It is in the equipment manuals. 15V max.
> Some components are rated at that level.
>
> You really don’t want to go too high or you lose a lot of power dissipated
> in linear voltage regulators inside the equipment.
> Of course too low and the transmitters can have issues. Things like the
> KRC2, W2 and other peripherals should be able to
> work pretty well las low as 8 or 9 volts, but they are most happy at the
> same level as the transceivers.
>
> - Jack, W6FB
>
>
>
> > On Sep 4, 2017, at 4:31 PM, Phil Kane <k2...@kanafi.org> wrote:
> >
> > On 9/4/2017 3:29 PM, Jim Brown wrote:
> >
> >> For several decades, 120/240 VAC became the Standard for single-phase
> >> distribution in North America. Those of us who call call it "110" are
> >> showing our age. :)
> >
> > And how many sources refer to it as "115 V" or worse "117 V".
> >
> > That raises the (on topic)  question of what is the acceptable
> > excursion/tolerance  standard for equipment designed to run on "12 V DC"
> > in light of the LiFePO4 battery discussion here recently.
> >
> > 73 de K2ASP - Phil Kane
> > Elecraft K2/100   s/n 5402
> >
> > From a Clearing in the Silicon Forest
> > Beaverton (Washington County) Oregon
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