Hi, check this link and see what you need to do,
one or two pass trans. will not do the job for you,
easier to use 6-10 pass trans to share the load.

http://www.mitedu.freeserve.co.uk/Ci...er/1230psu.htm

Is your transformer able to supply necessary power to this supply ?

regards,
clarke


Deos wrote:

Hi everyone I have made a power supply for my rigs

The schematic is the typical regulator with power transistor wrapped around
it for the extra juice.

I need 40 amps continues ..

I tried 4 mj2955 which are rather nice for foot warming in the winter .

I also tried nte-180 which are very good. is there anything better at a
logical price

I would like to keep the number of transistors down to 1 or 2.

Can someone advise my on what to use for power?

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http://www.qsl.net/sv1hao