Isolation transformer source
in [Repair]
|
Prev: Simple hack to get $500 to your home
Next: This inmate needs to be paroled, not given a second life sentence
From: Chuck on 11 Jun 2010 09:24 On Thu, 10 Jun 2010 09:44:12 -0400, JW <none(a)dev.null> wrote: >Can anyone recommend a good isolation transformer for sale on-line? >Need one that will handle 5 amps or so at 120VAC, and have a standard AC >plug at the outlet. Prefer one for less than $100 or so, unless that seems >unreasonable. Found one at Mouser for $114 but that's only good for 1.25A. >Getting lots of irrelevant hits on google... > >Thanks. MCM Electronics has one. Chuck
From: Phil Allison on 11 Jun 2010 09:42 "Chuck" > MCM Electronics has one. ** One what ?? ..... Phil
From: Dave Plowman (News) on 11 Jun 2010 09:30 In article <87dee7Fdj9U1(a)mid.individual.net>, Phil Allison <phil_a(a)tpg.com.au> wrote: > "JW" > > Can anyone recommend a good isolation transformer for sale on-line? > ** What kind ?? > There are two: > 1. Galvanic isolation - for use on a service bench. > 2. Neutral conductor isolation. > Most you see offered for sale in the USA are of the *second* kind. > .... Phil Surely an isolation transformer is just that - a one to one device with DC isolation between windings. How it is subsequently configured is a different matter. One use is where you can't be sure the line and neutral of the supply are connected correctly - if they have a ground reference. -- *To be intoxicated is to feel sophisticated, but not be able to say it. Dave Plowman dave(a)davenoise.co.uk London SW To e-mail, change noise into sound.
From: Wild_Bill on 11 Jun 2010 12:04 Referring to one (1) of 'em I think Yep, they have 'em. -- Cheers, WB .............. "Phil Allison" <phil_a(a)tpg.com.au> wrote in message news:hutefl$6rd$1(a)news-01.bur.connect.com.au... > > "Chuck" > > >> MCM Electronics has one. > > > ** One what ?? > > > > > .... Phil >
From: Cydrome Leader on 11 Jun 2010 12:07
Jon Danniken <jonSPAMMENOTdanniken(a)yahspamhoo.com> wrote: > JW wrote: >> Can anyone recommend a good isolation transformer for sale on-line? >> Need one that will handle 5 amps or so at 120VAC, and have a standard >> AC plug at the outlet. Prefer one for less than $100 or so, unless >> that seems unreasonable. Found one at Mouser for $114 but that's only >> good for 1.25A. Getting lots of irrelevant hits on google... >> >> Thanks. > > You could always salvage a couple of microwave oven transformers and connect > them back to back. Make sure and disconnect the secondaries from the cores > though, of course. > > Jon > > I've been tempted to try that just to see how awful the regulation is and what sort of waveform would even come out before the things burned up. |