[ARC5] 24vdc power

[Bob kb8tq]

Hi

One option is to stack some number of smaller transformers:

This would be one candidate (based on a very quick search):

https://www.antekinc.com/an-10425-1000va-25v-transformer/ <https://www.antekinc.com/an-10425-1000va-25v-transformer/>

The same folks who made that come up with a wide variety of
stuff up into the 1.5 KVA range. What they have today likely
will not be what you find in a couple of months. 

If you bought four of the ones above, you would be up 
around 150A into your load. Voltage would be a tad high. 
A lower voltage / higher current version likely will pop
up at some point. They have had them ( = 20V versions)  
in the past. 

Prices on their web site aren’t that different than what you see
on eBay. On eBay, most of their listings are free shipping. Not
so on the web site. 

There are a number of similar outfits out there. 

Bob


> On Sep 5, 2022, at 4:12 AM, mstangelo at comcast.net wrote:
> 
> Nice job.
> 
> The problem is where does one find big iron these days? The surplus houses don't have much anymore. Even if they had it the shipping costs are prohibitive. I guess you can find the transformers at hamfests.
> 
> Mike N2MS
> 
>> On 09/05/2022 2:15 AM Charles via ARC5 <arc5 at mailman.qth.net> wrote:
>> 
>> 
>> For the small loads mentioned here, that approach is a good one, although I have read that battery life may be limited. Unfortunately for larger SLA or flooded batteries, and switchers too, the price increases more than proportionately ;)
>> It was actually cheaper for me to buy some of the components for the brute force PS than to buy batteries (and switchers).
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