We use a bridge rec and an resistor for bat back up ..
as skopp notes the resistor is for current limitting .. so the PS does
not take a jolt if the battas are low
I will see if I can find the drawing and post ot the group .. if not I will
do another and post
nice thing is you can put this inside the PS and bolt it the the frame
.. and bring out 2 connectors for the batt .. I allways over rate the
bridge
I hope this helps ..
On 8 Jun 2005 at 15:45, skipp025 wrote:
> Motorola did the same thing... except they added a
> resistor in parallel with the diode (which was a
> TO-3 case transistor wired as a diode) for a battery
> trickle charge.
>
> I took it one step further and made my own style
> reverse charge circuit. Only takes a few parts...
>
> skipp
>
> > Eric Lemmon <[EMAIL PROTECTED]> wrote:
> > Dave,
> >
> > The GE Mastr II and Mastr Executive II stations were
> > both available with optional battery standby kits
> > that were nothing more than some wire, a fuse holder,
> > and a diode. Almost every LBI for a station combination
> > has the information about connecting it into the
> > power supply.
> >
> > Be aware that the above hookup does not provide a
> > trickle charge for the battery- the customer
> > must provide a separate charger. A bit cumbersome,
> > but it works.
> > 73, Eric Lemmon WB6FLY
> >
>
>
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>
> Yahoo! Groups Links
>
>
>
>
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>
>
>
> --
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========================
Rick Szajkowski VA3 RZS
Charlotte Darby VA3 CMR
Node Owners of IRLP Node 2120
147.300 + VA3 OME
224.420 - VA3 OME
Part of The Omeme Amateur Radio Club
Peterborough Ont. Canada
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