Re: on winding a transformer


"Eeyore" <rabbitsfriendsandrelations@xxxxxxxxxxx> wrote in message
news:48689A37.9788E744@xxxxxxxxxxxxxx


"Paul E. Schoen" wrote:

This sounds a lot like the same project that was discussed by the OP at
length March 22 ("Need a big transformer") and March 31 ("transformers
in
parallel"). If the OP simply needs +/- 24 VDC at 2 (or even 5) amps,
there
are easier and better ways to get that than tinkering with parts from an
old PC power supply. Unless you need something with exotic
specifications,
you can always buy it for less than you can build it (unless your time
is
worth nothing or it is mostly for learning). And for learning, it is
best
to build basic circuits until you understand them, and there is also a
lot
you can do by just running simulations. Much better and safer than
blowing
up parts in a breadboard.

Totally agreed.


I bought a 200 watt dual output +/- 43V 2A switcher originally designed
for
an audio amp for about $22 on eBay, and it is a well-made device that
will
meet my needs if I ever decide to build a high-power op-amp or audio
amplifier.

Do you still have the item number ? I'd be intruiged to just look at
that.

It was still on my watch list, and I just got this:

http://cgi.ebay.com:80/ws/eBayISAPI.dll?ViewItem&item=150201799823&ssPageName=ADME:B:DBS:US:1123

I bought some other items from them. A good vendor.

http://stores.ebay.com/semielectric

Paul


.

Relevant Pages

  • Re: on winding a transformer
    ... "Paul E. Schoen" wrote: ... are easier and better ways to get that than tinkering with parts from an ... worth nothing or it is mostly for learning). ... an audio amp for about $22 on eBay, and it is a well-made device that will ...
    (sci.electronics.basics)
  • Re: on winding a transformer
    ... On Jun 30, 1:32 am, Eeyore ... are easier and better ways to get that than tinkering with parts from an ... worth nothing or it is mostly for learning). ... an audio amp for about $22 on eBay, and it is a well-made device that will ...
    (sci.electronics.basics)
  • Re: Sixth grade science teaching
    ... >but that memorization _alone_, is not the best learning method, and is ... Nor are Paul are I suggesting that mathematics _ends_ with getting ... >context, without relationship to eachother, once you forget, which you ...
    (talk.origins)
  • Re: first time writing for big band
    ... I also think it's arrogant hubris on your part to think that you should be able to do this without any arranging training, ... If you've really got 10 months to do this and you're really interested in learning how to do it right, ... Sorry Paul, but that's the way I see it. ...
    (rec.music.makers.guitar.jazz)
  • Re: Query: Book recs on *teaching* Japanese.
    ... practice speech, but never attempt to write his message in Japanese, ... my point is I encourage Paul to start learning to _think_in_ ... Phil Yff ...
    (sci.lang.japan)
Quantcast