With that trick, you can switch four directions using only one single
coax cable, two RBS-1P and another relay that is switched with +12Vdc
and 9Vac.
With 0V and -12V you control one RBS1-P, with 9Vac and +12V you select
and control the other RBS1-P
73 de Guido, ik2bcp
Il 24/03/2012 13:03, Kenneth Grimm ha scritto:
> Thanks very much Guido! That is the answer I was looking for. I had
> forgotten about the use of AC in switching. Now that you have told
> me, it is obvious! Thanks again OM.
>
> 73,
>
> Ken - K4XL
>
> On Fri, Mar 23, 2012 at 6:46 PM, Guido Tedeschi <guidoted@gmail.com
> <mailto:guidoted@gmail.com>> wrote:
>
> Il 23/03/2012 16:10, Kenneth Grimm ha scritto:
> > Both of these boards appear to have an electrolytic capacitor
> > installed. On both boards the electrolytic appears to be
> associated with
> > the direction switching relay. None of the two wire beverage
> diagrams that
> > I have seen have such a cap and I wonder what its function is
> and how it is
> > connected in the circuit. I am told that the value is 100 mfd @
> 50 volts.
> >
> > Apparently the cap isn't necessary, but since I have a few in my
> junk box,
> > this might be an opportunity to put one of them to use!
> >
> If you are talking about the RBS-1P, the electrolytic capacitor is
> connected in parallel with the relay coil (positive terminal of
> capacitor connected to ground), after the diode with anode
> connected to
> the relay, and it is needed because you can switch the direction also
> with an AC voltage (about 8-9Vac).
> If you will never use an AC voltage but only -12Vdc, the capacitor is
> not needed...
> 73 de Guido, ik2bcp
>
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
>
>
>
> --
> Ken - K4XL
> BoatAnchor Manual Archive
> BAMA - http://bama.edebris.com
>
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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