In article ,
Amos Keag wrote:

Ground Loop. Took time to find it though.

The Astron RS-35 power supply connects utility power neutral to the
case. It also connects the 13.8 volt return to the case. [This is
commercial common practice but is prohibited in Military Systems
design.]

*yoicks*!

The latter, I can believe is common practice.

The former - tying the powerline neutral directly to the case -
strikes me as being *extremely* contrary to electrical code and common
sense. It'd turn the supply into a deathtrap-waiting-to-happen if it
were plugged into an outlet having the hot and neutral reversed... and
these are (alas) not at all uncommon.

Now, having the utility power safety ground wired directly to the
case, I can very well believe... this is quite common.

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
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