Mike S wrote:
At 12:44 AM 3/10/2010, Ed Palmer wrote...
It would seem to make more sense to have the fan blowing hot air out
the back and drawing the hot inside air over the temperature sensor.
The reason to have a fan blow in is so you can put a filter on it. It
also creates more turbulence inside the box, for more effective heat
removal.
You want to collect dust before it comes into the electronics, yes.
I have never had a problem with hot air blowing at me in front of a
HP5372A, and I have spent many ours in front of one.
The HP5372A has many good places for venting air, even if the air-tunnel
effect is far from optimum, but kind of typical for its age.
I have yet not found an instrument that fully replaces it either even if
several outperform it in resolution (200 ps) and memory-depth (8192
time-stamps can be stored).
Cheers,
Magnus
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