[Elecraft] Items you think you can depend on

[Christopher Hoover]

>
> 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 <jackbrindle at 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 <k2asp at 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
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to jackbrindle at me.com
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to ch at murgatroid.com
>