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Old Aug 22, 2008, 06:54 PM
MSu1049321@aol.com
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n/a Posts
Re: External DC power Question

I have a Triton charger and was looking for a power supply so I could run it
indoors in the winter (yes, I'll be careful). Saw this power supply
advertised at www.allelectronics.com. Output is 24vdc, 6.5 amp. I know the Triton
expects to see something like a 12 volt car battery, so can I/ how would I go
about using this power supply without frying the Triton?

Catalog item potrans #FS-15024-1M if you wanna look at it on their web
site.

I have a stack of like five old computer power supplies on the bench, I had
thought about getting one of them to work for this using the Internet
directions but don't have the time/inclination to futz around. This one is $24 and
that's about half what the local Radio Scrap store would charge for something
similar.

Any help?


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Old Aug 22, 2008, 07:19 PM
Doug McLaren
Guest
n/a Posts
Re: Re: External DC power Question

On Fri, Aug 22, 2008 at 07:54:07PM -0400, MSu1049321@aol.com wrote:

| I know the Triton expects to see something like a 12 volt car
| battery, so can I/ how would I go about using this power supply without
| frying the Triton?

If you're worried about futzing around, then I'd just skip that PS and
get a 12v one.

I picked up a PS with the same shape/form factor for about the same
price a few years ago on Ebay and it was 12 volts. It had a pot that
would fine tune the voltage, but I doubt it could drop it by 50%. (It
also put out the same power -- they halved the voltage, and doubled
the amperage.)

Ebay seems to have lots of similar power supplies that do 12v, but the
price seems to have gone up, and many are in Hong Kong ...

| I have a stack of like five old computer power supplies on the bench, I
| had thought about getting one of them to work for this using the
| Internet directions but don't have the time/inclination to futz around.

It's probably less futzing than modifying a 24v PS to be 12v anyways ...

| This one is $24 and that's about half what the local Radio Scrap store
| would charge for something similar.

Radio Shack is easily beaten. Though even $50 at RS for a 6A PS
seems a bit cheap.

If there's a local ham radio swap meet, they're good places to look
for this sort of thing. Or go down to Goodwill, and find a laptop or
printer power brick that emits 12 volts.

The Triton can use up to 13 amps, but unless you charge large NiCd or
NiMH packs (5 amps, 20 cells, that sort of stuff) you'll never go
anywhere near that limit, and can do with a much smaller power supply.
Six amps will probably handle most people just fine, for example.

--
Doug McLaren, dougmc@frenzied.us
There is no monument dedicated to the memory of a committee.
--Lester J. Pourciau
RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to soaring-request@airage.com. Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Old Aug 22, 2008, 11:17 PM
Rob Davis
Guest
n/a Posts
Re: Re: External DC power Question

I found a 20A PS off rcuniverse for $60.
http://www.rcuniverse.com/market/item.cfm?itemId=422190

Rob

On Fri, Aug 22, 2008 at 7:19 PM, Doug McLaren <dougmc@frenzied.us> wrote:

> On Fri, Aug 22, 2008 at 07:54:07PM -0400, MSu1049321@aol.com wrote:
>
> | I know the Triton expects to see something like a 12 volt car
> | battery, so can I/ how would I go about using this power supply
> without
> | frying the Triton?
>
> If you're worried about futzing around, then I'd just skip that PS and
> get a 12v one.
>
> I picked up a PS with the same shape/form factor for about the same
> price a few years ago on Ebay and it was 12 volts. It had a pot that
> would fine tune the voltage, but I doubt it could drop it by 50%. (It
> also put out the same power -- they halved the voltage, and doubled
> the amperage.)
>
> Ebay seems to have lots of similar power supplies that do 12v, but the
> price seems to have gone up, and many are in Hong Kong ...
>
> | I have a stack of like five old computer power supplies on the bench,
> I
> | had thought about getting one of them to work for this using the
> | Internet directions but don't have the time/inclination to futz
> around.
>
> It's probably less futzing than modifying a 24v PS to be 12v anyways ...
>
> | This one is $24 and that's about half what the local Radio Scrap store
> | would charge for something similar.
>
> Radio Shack is easily beaten. Though even $50 at RS for a 6A PS
> seems a bit cheap.
>
> If there's a local ham radio swap meet, they're good places to look
> for this sort of thing. Or go down to Goodwill, and find a laptop or
> printer power brick that emits 12 volts.
>
> The Triton can use up to 13 amps, but unless you charge large NiCd or
> NiMH packs (5 amps, 20 cells, that sort of stuff) you'll never go
> anywhere near that limit, and can do with a much smaller power supply.
> Six amps will probably handle most people just fine, for example.
>
> --
> Doug McLaren, dougmc@frenzied.us
> There is no monument dedicated to the memory of a committee.
> --Lester J. Pourciau
> RCSE-List facilities provided by Model Airplane News. Send "subscribe" and
> "unsubscribe" requests to soaring-request@airage.com. Please note that
> subscribe and unsubscribe messages must be sent in text only format with
> MIME turned off. Email sent from web based email such as Hotmail and AOL
> are generally NOT in text format
>


 


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