[Amps] water or vapour phased cooling for SS

[Rob Atkinson]

>
> Why  do the transistors have to have an insulator between em and the heat sink anyway.  Why
> not just mount them directly to the heatsink.

I didn't know it was an insulator.  I thought the layer between the
transistor and the sink was some kind of thermal conducting grease.

My _guess_ is that a fluid compound is inserted between the transistor
and heatsink so the transistor is not damaged by expansion.

My dumb head tells me that if you all need to do headstands and
cartwheels with water, vapor and so on with a PA on HF then you need
to use more transistors or tubes.

73

Rob
K5UJ