"Deos" 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 .

The function of the pass transistor is to dissipate as heat the difference
between input and output. Sounds like you need a bigger heat sink...or
build a switching supply.
Ray