[time-nuts] HP 5372A Fan

[Magnus Danielson]

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