[hpsdr] How to fry Penny/Ozy

[Kevin - M0KHZ]

Charlos Potma wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
>   
>
> ------------------------------------------------------------------------
>
> Hi All,
>
> Last night one of my old and trusted HP power supplies failed in a 
> spectacular way:
> the output voltage went from 12V to 40V. The result was a sputtering and
> smoking Penny output stage, popped capacitors on Atlas and
> some components damaged on the Ozy board.
> Lesson learned: do NOT trust your power supply. I need to build
> a dedicated supply now with overvoltage protection on all outputs...
>
> 73, Charlos Potma, PA3CKR
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at hpsdr.org
> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org
> HPSDR web page: http://hpsdr.org
> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/
Charlos
This is VERY unfortunate, hope you have a speedy recovery, over voltage 
protection on Demeter is a must.

I'm still running on a 120W Pico supply, but really not sure if it'll 
cope with Mercury when she lands, so I've been thinking about supplies 
recently, with no conclusion as yet.

73's
Kevin - M0KHZ

 1213085874.0