[time-nuts] HP E3610A Power supply

[EWKehren at aol.com]

Paul we need to talk about 405 many things happening. I will be out from 11 
 till 3 otherwise at home.
Bert
 
 
In a message dated 6/18/2014 10:41:32 P.M. Eastern Daylight Time,  
paulswedb at gmail.com writes:

Bert  just finding out that google mail is treating your emails as spam!
Not sure  if the message appears but as you can see it questions who you 
are.
I found  numbers of missing emails a few minutes  ago.
Regards
Paul
WB8TSL


On Thu, May 22, 2014 at 7:59 AM,  <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
>  _______________________________________________
> time-nuts mailing list  -- time-nuts at febo.com
> To unsubscribe, go to
>  https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the  instructions  there.
>
_______________________________________________
time-nuts  mailing list -- time-nuts at febo.com
To unsubscribe, go to  
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the  instructions there.