[time-nuts] HP5370 power supply measurements

[Mark Sims]

I have replaced the fans in all my 5370's with quiet 12V  (150-250 mA) brushless DC fans running off of the 10V rail.   I placed themocouples around the inside of the unit and compared before and after temperatures and found no significant differences.  I have used several different models of fans... whatever the local surplus store had at the time.

I also replaced the fans in my HP16500 logic analyzers  (aka pizza ovens)  with much quieter fans.

-----------------------------

> Speaking of fan noise -- you can't really get away with replacing the 
internal fan with one that moves less air, so it is hard to find a 
replacement that generates significantly less noise.  If you find one, 
please share the make and model -- all 5370 owners would love to know.