[time-nuts] 5070B once more.... (actually 5370A fans)
Rick Karlquist
richard at karlquist.com
Thu May 21 20:39:07 UTC 2009
Hal Murray wrote:
> How much ECL is used in a 5070?
A bunch
How tightly are they packed?
You need a high cooling velocity even if just one chip.
> How much of
> the heat goes directly from the chip to the air rather than from chip to
> board to air?
A substantial amount of cooling is from DIP to air, unlike tiny
SMT packages used now.
> How much room is there above the chips? Many years ago I saw some neat
Probably not much extra room.
Rick Karlquist N6RK
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