[Boatanchors] Question on 24 volt

[Jim Wiley]

One possible solution, and one that has other benefits as well:   Get a 
24-volt "Farm" automatic battery charger. rated at 10 amperes or so.  
Get either 2  each 12-volt deep-cycle marine or 4 each 6-volt golf cart 
batteries (better).  he batteries are available at reasonable prices at 
Costco or Wal-Mart.  Hook the batteries up in series, and presto, a 
24-volt system good for perhaps hundreds of amperes.  The batteries 
supply the 40 amperes you need when running the gear, and the charger 
recharges them overnight when you are not using the radios.  Advantages: 
lots of amperes withouthaving to spend big money for current capacity 
that is used only intermittently, immediate backup power in case of 
power outage, and so on.
That is what I use, anyway. Has worked fine for many years, the only 
important thing to remember is to check the water level in the batteries 
every month or so and refill them with distilled water as needed.  Put 
the batteries where theyare well ventilated. I have a pair of almost 
silent salvaged 12-volt computer fans (wired in series for the 24 volts) 
blowing across the tops of the cells to disperse any hydrogen they might 
generate.  Theuse of a relatively small battery charger limits the 
amount of gas that the batteries can create at any given time.


- Jim, KL7CC



On 3/29/2013 8:43 PM, Bill Cromwell wrote:
> On Fri, 2013-03-29 at 23:19 -0500, Preston Clark wrote:
>> This may be the wrong site but i am curious what do people do to run old
>> military gear  i am looking a getting a t-195 i called fair radio  and they
>> say to power it is 24 volt  40 amps  any ideas
>>
>> 73
>> Preston Clark
>> KF5EVV
> Hi Preston,
>
> Some of the guys here who actually run radios like that will step in to
> tell you what they do. I run lower power than you if you are going to
> draw 960 watts to power your TX. I know that's not 960 watts at the
> antenna faucet but still...
>
> For an AC supply to push 100 watts out the antenna port I have the
> transformer from a big 12 volt battery charger/booster surrounded by the
> rest of the goodies needed for a power supply. You might do it with two
> of them if you can get them. Mine is rated for 50 Amps. A couple of big,
> honking, 12 volt, truck/tractor batteries in series or a 24 volt model
> would do for battery power. I don't mean pickup truck batteries which
> wouldn't keep you on the air very long.
>
> Waiting to see what the people who actually use those radios do about
> that.
>
> 73,
>
> Bill  KU8H
>
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