Jim, Although not perfect, for isolation I purchased a couple 1 KVA 220/440 to 110 volt industrial transformers from Mendelson's surplus some years ago. I wired them back to back and put them inside a wooden box.
I am sure there is some capacitive leakage, but my multimeter shows "nothing" with reference to the home power system.. 73, Ron WD8SBB --- On Tue, 2/1/11, Jim Larsen - AL7FS <[email protected]> wrote: > From: Jim Larsen - AL7FS <[email protected]> > Subject: Re: [Drakelist] Test equipment and getting started > To: "Drakelist" <[email protected]> > Date: Tuesday, February 1, 2011, 6:29 PM > Okay, Nigel, can you suggest a couple > of makes and models to consider? I had heard one could be > built but I guess not. > > Thanks. > > Jim > > Jim Larsen, AL7FS > Anchorage Alaska > 907-345-3190 > http://www.AL7FS.us/ > > > On 2/1/2011 2:16 PM, Nigel Gunn G8IFF/W8IFF wrote: > > You don't make one, you go buy it. > > It's just a 1:1 mains in/mains out power transformer. > > You probably need something rated for a couple of KVA. > They're not cheap. > > Run the transformer from a GFCI protected power > outlet. > > > On 01-Feb-11 23:06, Jim Larsen - AL7FS wrote: > >> I have been combing the internet for a building > article on isolation > >> transformers and Ground Fault Circuit > Interrupters > >> (GFCI). > >> Google and Bing have failed me. Can any of you > help? A URL? A PDF? A > >> .doc file? > > _______________________________________________ > Drakelist mailing list > [email protected] > http://mailman.zerobeat.net/mailman/listinfo/drakelist > _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
