Re: 12 volt power source?

Ray Haddad wrote:

On Mon, 24 Dec 2007 08:34:58 +1300, I said, "Pick a card, any card"
and Greg Procter <procter@xxxxxxxxxx> instead replied:

Here's a laboratory power supply from Jaycar Electronics:
<http://www1.jaycar.com.au/productView.asp?ID=MP3078&CATID=&keywords=Bench+power+supply&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=>

Here's a laboratory power supply from *** Smith Electronics:
<http://dseau.resultspage.com/search.php?sessionid=476eb5e50123fe3a273fc0a87f9c0718&w=Power+supply+13.8&site=&submit.x=11&submit.y=8>

Sorry the links are so long but that takes you to the specific product.

I've been involved with fitting ship, boat and truck radio/depth finding
etc gear (AWA NZ, a division of RCA USA) All our gear was rated at 13.8
volts because that's the operating voltage found on batteries in circuit
in those situations.

That's because they run from a generator or an alternator and not a
12 volt battery which is never, ever going to be at 13.8 volts.


LOL.

The battery is in circuit between the generator/alternator and the load,
it's an integral part of the voltage regulation circuit.
If the alternator and the load are at 13.8 volts then the battery _must_
be at ...?
.

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