I'm not sure I'd want to go quite this far, but here's one option..
http://gerrysweeney.com/hp-53131a-hard-power-switch-modification/
Regards
Nigel
GM8PZR
In a message dated 02/02/2014 03:50:56 GMT Standard Time,
stanw...@verizon.net writes:
Hello The Net,
I just got in the
Thanks for all of the assistance.
I will initially use a separate power strip for similar parasitic AC loads.
Firmware version is 3703.
Stan, W1LE on Cape Cod
z
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Hello The Net,
I just got in the counter and the fan is always ON, even with the front
panel switch OFF.
I looked in the manual but could not find anyway to change this.
The counter has the standard internal 10 MHz reference, but I will be
using a Trimble T'bolt GPS/DO for the external
I know that with the ovenized oscillator the power supply (and therefore fan)
are always on.
Thomas Knox
Date: Sat, 1 Feb 2014 22:50:13 -0500
From: stanw...@verizon.net
To: time-nuts@febo.com
Subject: [time-nuts] New Acquisition: HP-53132A
Hello The Net,
I just got in the counter
Are there any key strokes to determine the software version, other than
a check sum ?
Hi Stan,
Hold recall down as you press power-on to see the firmware version.
It's a very nice counter. I use them all the time. Here's some light reading
for you:
According to the manual (in several places):
*It is normal operation for the fan in the Counter to continue to run after
the Counter is*
*placed in Standby mode. Power to the timebase is continuous to maintain
long term*
*measurement reliability, and the fan helps maintain timebase temperature
