[Amps] Power supply design considerations

[Jim Isbell]

I am still working on the 4-1000A amplifier design and have decided to 
separate the PS from the RF chassis.  I still don't have my HV 
transformer but I am thinking that it will be too big to get into my 
presently designed cabinet of 14" x 14" x 12" dimensions along with the 
4-1000A and all the plate tuning circuitry and filiment transformer.

I will be putting the power supply under the bench in a built in (wood) 
cabinet that is already there.  The PS chassis/cabinet itself will be 
made of aluminum but it will set on a shelf inside a closed door so I am 
wondering about wheather I will have to wory about heat build up?  It 
will be solid state diodes, capacitors and transformer. Do I need to put 
in a fan in the side of the cabinet?

The second item I am asking for design help on is the power cable to the 
RF chassis.  This will run about 6 feet from the under desk cabinet to 
the top of the desk through a hole in the bench.  It will be near my 
knees so I dont want it to arc (5 Kv) to any part of my body.....#8-)  
What should I use for transmission cable?  What is a source for such cable?