I have two 5370A and both run about the same temperature.
It is high, but the heatink only supports a few power bipolar transistors used
in the power supply that are designed to run hot.
Other than the inconvenience of having blisters if you touch the heatsink, I
would not worry about it. Its better to have the heat dissipated outside the
unit than inside.
Didier KO4BB
Sent from my BlackBerry Wireless thingy while I do other things...
-----Original Message-----
From: Eric Garner <garn...@gmail.com>
Sender: time-nuts-boun...@febo.com
Date: Fri, 9 Mar 2012 10:08:56
To: Discussion of precise time and frequency measurement<time-nuts@febo.com>
Reply-To: Discussion of precise time and frequency measurement
<time-nuts@febo.com>
Subject: [time-nuts] 5370B heatsink temperature
I just acquired my first HP 5370B off of ebay. After I had it running
for 30 min to get it warm and start doing the checkout procedures in
the manual i noticed that the heatsink was REALLY hot. I used my IR
thermometer to check it and it read ~160F(71C). This seems excessively
hot to me. What's "normal"? i didn't see it in the manual, but I might
have missed it.
--
--Eric
_________________________________________
Eric Garner
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