[time-nuts] HP E3610A Power supply

EWKehren at aol.com EWKehren at aol.com
Thu May 22 19:18:41 UTC 2014


Brooke NO
Bert
 
 
In a message dated 5/22/2014 3:12:56 P.M. Eastern Daylight Time,  
brooke at pacific.net writes:

Hi  Bert:

My E3617A has a front panel adjustment screw for Over Voltage  Protection.
Does the E3610 have  that?
http://www.prc68.com/I/Capacitors.shtml#SupCMeas

Have  Fun,

Brooke  Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html

EWKehren at aol.com  wrote:
> This may be off topic but I did check with Tom and many time  nuts may 
have
> HP E3610A power supplies on their bench and mine smoked  a ublox GPS so 
that
>   makes it topic related..
> The  reference section has some 1 uF 50V capacitors and in my unit one
>  shorted. The reference section has fuses on the board but they did not 
open.  The
>   7912 overheated and shorted out,  traces are  discolored the op amp  
shows
> signs of overheating and burned out.  The result was the output went  to 
30V+
>   and next  morning the ublox chip plastic showed where the chip  smoked. 
As
>  a minimum I recommend replacing the 1 uF capacitors with new quality   
caps,
> I also ordered 15 V 5 W zeners and 0.5 A 20 mm glass  fuses.
> Bert Kehren
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