[time-nuts] New Acquisition: HP-53132A

[GandalfG8 at aol.com]

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,  
stanw1le at verizon.net writes:

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  reference.

The fan is part of the power supply module. I can see a  possible need 
for it if a premium ovenized reference is always ON.
But  I do not have the premium internal reference.

Is there a way to only  allow the fan to be ON, if the front panel switch 
is ON ?  Possibly a  jumper setting ?

Are there any key strokes to determine the software  version, other than 
a check sum ?
I do not have the standard HP serial  number, with the" vintage" 
(manufacturing date code) code first.
The  unit was manufactured in Korea.

Stan, W1LE on Cape  Cod




ZZZZz
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