[time-nuts] 5370B heatsink temperature

[shalimr9 at gmail.com]

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 <garnere at gmail.com>
Sender: time-nuts-bounces at febo.com
Date: Fri, 9 Mar 2012 10:08:56 
To: Discussion of precise time and frequency measurement<time-nuts at febo.com>
Reply-To: Discussion of precise time and frequency measurement
	<time-nuts at 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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