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Down to earth



Original poster: Matt Gillott <mcg@xxxxxxxxxxxxx>

Hi all
Question about earthing.
Ive seen a lot of different designes on the net for earthing configurations mainly the three as follows though: 1. RF ground to the bottom of the secondary only. Mains/line earth to all the other earthing points in the circuit (transformer casings etc). 2. RF ground to all the earths, both bottom of the secondary and any other earthing points. Mains/line earth connected to nothing
3. RF ground connected to mains/line earth and all earths on the circuit.

From reading I hear that the 3rd configuration is rather dangerous, whats the genreral oppinion about using mains/line earths and whats the prefered configuration?

--
Matt Gillott
(mcg@xxxxxxxxxxxxx)