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Re: [APD] DIY jobs
Just a reminder, while we're on the subject:
While reducing the voltage way down helps prevent risk of
injury from electrical shock, a
Ground-Fault-Circuit-Interrupter should be considered
required equipment whenever mixing water and Tesla's magic.
Good luck, good fun,
--- "Mariano F. Bonfante" <mariano_bonfante at hotmail_com>
> That´s a very interesting point I have never considered.
> I will try to place
> a rectifier in the system.
> Thanks for the info.
> >From: Stuart Halliday <stuart at stuarthalliday_com>
> >Reply-To: stuart at stuarthalliday_com, aquatic
> plants digest
> ><aquatic-plants at actwin_com>
> >To: aquatic plants digest <aquatic-plants at actwin_com>
> >Subject: [APD] DIY jobs
> >Date: Mon, 05 Sep 2005 16:12:53 +0100
> >Mariano F. Bonfante wrote:
> > > Local outlets has 220V 50Hz, so I am using a 60Vca
> (typical en CATV
> > > industry), galvanic insulation transformer for
> feeding the resistors.
> > > is also a dimmer circuit, to allow two phases: day
> and night. Daytime
> > > permits the substrate to be 1ºC above the water, nigh
> phase just a bias
> > > voltage.
> > > I spent some time with these systems, but it is fun
> and I like it.
> >I'm a IT engineer, who was a electronic engineer, so
> I've often built my
> >own low powered heaters for small Aquariums.
> >I put the resistors in a test tube and fed them 18V DC @
> 1.1A from a
> >basic regulated off the shelf DC power supply.
> >So no risk of electric shock or it failing like normal
> >It has as a side effect, a low electromagnetic field due
> to its use of
> >DC as oppose to using AC. Some say fish are sensitive to
> these fields.
> >Stuart Halliday
> >Aquatic-Plants mailing list
> >Aquatic-Plants at actwin_com
> Aquatic-Plants mailing list
> Aquatic-Plants at actwin_com
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