Modern Electronics (was Re: List charter mods & headcount... ; -))

21 Jun 2004

...
    - with the benefit that goes with the better radiation
resistance
 that goes with valve technology.  Is it valves that give you rad-hardening, or
size?  [...].
 (Certainly the largest transistors I've seen are far smaller than
 the smallest valve I've seen.  [...])  Take a look at power transistors
sometime.  Some come in "hockey
 puck" packages, which describes not just the shape but also the size.
 And I think a fair fraction of that package is die... 
I've never seen any such - but I don't think I've seen any really
high-power valves, either.

I'd guess that power transistors of that size aren't very vulnerable to
radiation, too, which was mostly my point: that (I suspect) much of a
valve's rad-hardening is due to sheer size, not the fundamental method
of operation.  ICBW, of course; wouldn't be the first time. :)

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Modern Electronics (was Re: List charter mods & headcount... ; -))