phill.r1 at btinternet.com
Sat Oct 10 10:08:35 UTC 2009
I have a similar problem so I would be pleased to hear from you with any
useful information. The basic problem with mine is that the power supply is
suspect - it works, but there is excessive heat, much greater than any other
HP instrument that I have, from the rear mounted heat-sink, this is too hot
to hold your hand on ! There is also a very obvious buzz from the power
transformer, even when it is on "stand-by" - so I guess at worst it could be
shorted turns in the power transformer, or probably better, a faulty bridge
rectifier,or one or more of the large reservoir caps - this an early model
(1984), so perhaps it is to be suspected. I also think the performance is
not to specification, but I will check-out the perceived problem with PSU
before I investigate this matter. I am just about to start the
investigation of the prime problem.
----- Original Message -----
From: "Joseph Gray" <jgray at zianet.com>
To: "Discussion of precise time and frequency measurement"
<time-nuts at febo.com>
Sent: Saturday, October 10, 2009 5:46 AM
Subject: [time-nuts] 5370A
>I just got a 5370A locally and am going through the performance
> checks. Things are not as they should be. Is there someone who knows
> this unit intimately who would be willing to help me off list?
> Joe Gray
> time-nuts mailing list -- time-nuts at febo.com
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