[time-nuts] 5070B once more.... (actually 5370A fans)

Jim Palfreyman jim77742 at gmail.com
Thu May 21 20:32:22 EDT 2009


I came home one day to find *that* smell in my workshop. It turned out to be
my HP 3325B. It had been on for ages and it had also been a warm day. I
looked at the back and found the intake completely blocked up with dust.

It seems to still work, but I need to open it right up and check it out
properly.

So, yes, in conclusion air flow is important!

Jim


2009/5/22 Mark Sims <holrum at hotmail.com>

>
> A8? Reference buffer?  Gee, I thought was the electrostatic dust magnet ;-)
>   That puppy can grow more fuzz than a sheepdog.   In all the machines I
> have worked on,  it was utterly disgusting.
>
> BTW,  the best way to locate where to drill the access hole for the
> oscillator tuning pot is to look on the underside of the top cover.  The
> oscillator compartment will be outlined in dust.  Measure the tuning screw
> location from the sides of the oscillator compartment with calipers and
> transfer the measurements to the dust outline...  it's more accurate than
> measuring from the edges of the box.
>
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