dont have any idea how to work with mosfet
any links in the right direction?


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http://www.qsl.net/sv1hao
"Frank Dinger" wrote in message
...
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?
========
Assuming that so far you have only considered bi-polar transistors
,perhaps
it would be beneficial to look into the application of Power MOSFETs. In
the
'on' state they have a very low resistance ,hence at high currents they
dissipate less heat .
Consequently you would need smaller heat sinks.

Frank GM0CSZ / KN6WH