[Elecraft] K2 grounding

[David Cutter]

I have quite a few power supplies and I think they are all isolated from 
ground, ie the metal enclosure is safety grounded to the house mains supply 
(because they are Class 1 equipment in which the grounded chassis provides 
the main barrier to shock hazard), but both low voltage output terminals are 
floating which is provided by the mains transformer.    Only plug top 
transformers, wall warts, power cubes and other plastic-enclosed power 
supplies have no mains earth connection in my experience.

David
G3UNA


This excludes such
> historical anomalies like the early Astron power supplies that didn't have 
> the chassis grounded