[hpsdr] 48V DC PSUs

[Erich Heinzle]

Just thinking out loud here,

a cheap arc (a.k.a. stick) welder should give up to (adjustable)
45V AC at up to 100A intermittent and 50A continuous quite
cheaply.

Add some admittedly expensive diodes/capacitors+/-regulators,
and you have a pretty beefy PSU for a linear PA.

I'm not sure about leakage/magnetizing currents (i.e. efficiency)
etc.. though.

The money you save could then pay for the hernia surgery....

Cheers

Erich
VK5HSE

While researching Harris TV amp modules i came across the site of k3hkr 
http://k3hkr.com/HARRIS101.html who recommended HP server 50V 57A psus. I 
got one for $30 and it works fine although as currently built its probably 
not OSHA compliant! 

> Does anbody know if we might modify some of the larger PC switched mode 
> psu for 48V as the DC source?




      
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