Re: Resistor vs transformer

From: "Phil Allison" <philallison@xxxxxxxxxx>
Date: Wed, 8 Feb 2006 10:59:01 +1100

<bill.sloman@xxxxxxxx>

** DA SLOW MAN " strikes again.....

No. Get a transformer with a dual 115V+115V primary, connect the
primaries in seires, and hook your fire alarm across one of the
primaries. Ignore the secondary windings.

Cost goes by size, but 6VA transformers have rotten regulation. The
2002 Farnell catalogue lists a 12VA part (stock number 159-591) whcih
cost 6.58 euro and would presumably do the job,

** Shame it only has a single 230 volt primary:

http://au.farnell.com/jsp/endecaSearch/searchPage2.jsp?Ntt=159-591&Nty=1&N=401&Ntk=gensearch

LOL

........... Phil

.

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Re: Resistor vs transformer
... primaries in seires, and hook your fire alarm across one of the ... Cost goes by size, but 6VA transformers have rotten regulation. ... the secondaries in series and tapping the voltage across a pair of ...
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Re: Resistor vs transformer
... primaries in seires, and hook your fire alarm across one of the ... Ignore the secondary windings. ... Cost goes by size, but 6VA transformers have rotten regulation. ... costs 8.09 euro. ...
(sci.electronics.design)