Here is the cheep and ham way of getting a psu. Try and get your hands on a
BIG 12v charger ( a used of the kind used on service stations) 60 -70 amp.
This is the base for your psu. The rest you can find on the drawing.
http://www.qsl.net/yo5ofh/projects/power_supply.gif

Geir

wrote in message
oups.com...
Is there a best place to find or make a cheap power supply for a 50
watt mobile radio to use as a base station? Are computer power supply's
good?