[ARC5] 24vdc power

[kn7sfz]

Yes, I imagine the only blinking are the house lights when you plug that 
gentleman in!.......😉😉

Richard kns7fz



On 9/4/2022 10:23 AM, Charles via ARC5 wrote:
>> Hey guys,
>> What's everybody using to provide 24vdc for your military radios? Two 
>> 12vdc supplies in series?  Home brew?  Do they make a 24vdc switching 
>> supply that will handle 10 amps or so?
>> Thanks for your input,
>>
>> Richard kn7sfz
> Anything with a dynamotor needs about five times the motor nameplate 
> current for the starting surge...
>
> I got a 2 KVA three-phase 115V 400 Hz rotary converter at a flea 
> market but nothing I had was big enough to start it (rated at 27.5VDC 
> at 115 amps!)
>
> So I bought a 20 VAC, 5 KVA toroid transformer on ebay, a BFBR (big 
> bridge rectifier), heat sink, a 220,000 uF cap, meters and shunts, and 
> brewed up a 24-28V 120 amp brute force supply with 240 VAC input. THAT 
> starts the converter all right. It doesn't even blink at smaller 
> dynamotors :)
>
> -Charles, WB3JOK/0
>
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