well take the 9.6 volt circuit off of the TPN1121a and go from there no
transformer
John
----- Original Message -----
From: MCH
To: Repeater-Builder@yahoogroups.com
Sent: Tuesday, September 29, 2009 4:52 AM
Subject: Re: [Repeater-Builder] Re: Micor Repeater
Maybe you missed a key part...
"Site owner does not want a micor power supply."
The 12V only is not the issue - it's the fact that the chassis has to be
run off 12V when it requires a 9.6V secondary supply.
(unless you put the TPN1121A in a big, black box and call it a 9.6V
converter) ;->
Joe M.
burkleoj wrote:
> Ralph,
> Motorola did make a special power supply for running the Micor station off
of a 12 volt battery system. It is Model TPN1121A.
>
> They are fairly rare but very nice. I use these on our solar sites here in
Western Oregon for our Micor repeaters.
>
> I would be surprised if you could not come up with one of the TPN1121A
power supplies in your part of the country, where solar sites are fairly common.
>
> Joe - WA7JAW
>
> --- In Repeater-Builder@yahoogroups.com, "Ralph S. Turk" <w7...@...> wrote:
>> I am building up a Micor repeater using a unified chassis
>> for use in Montana on a Mountain site. Site owner does not
>> want a micor power supply. He has station batteries and charger
>> system.
>>
>> Does anyone have a regulator circuit to make the 9.6 vdc and audio 12 vdc
>> necessary for the unified chassis? I am sure I could design a circuit
using
>> a 3 leg adjustable regulator and a pass transistor. Just don't want to
>> reinvent the wheel if I don't need to
>>
>> Ralph, W7HSG
>>
>
>
>
>
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