cheap transformers wanted

hi, any body got any 15vac to 20 vac transformers , minimum 4 amp.

must be CHEAP , 3 transformers wanted. . snipped-for-privacy@adam.com.au

Yeah, I would imagine a variable transformer 15 to 20 vac would be rare. Still who are we to argue with the groups new technical expert ??

Rheilly P

"Rheilly Phoull" wrote

come on guys...dont pretend you didnt understand what does he need...he need a trafo with any output Voltage between 15 and 20Volts...so it can be

16...17...18...19...and max 20 ...after all, it can be variable if you make an outlet each Volt...and finally if you make a

and my 2 cents for "noone" are; make yourself what you need..., i dont know about Aussie electronitians, but Croatian ones are pretty much skilled in making classic EI or C core trafos coz of huge difference at price of "home made" ones and factory produced...unless you need dozens of it or toroidal, then buying a "original" one is justified...

you need a trafo with core designed for aprox 100W with any VAC output....you can get a used one for aprox 5$....then remove the secondary coil and rewind it with CuL of aprox 1.5mm (CuL dia mm= 0.7 x sqrt of Is) ...100W will be for about 5Amps at 20Volts...and number of winds per Volt is; nmV= 45/Sq of core

if you have a CuL and working trafo core with primar on it...rewinding with your own secondary coil you can be done within max 2 hours...by hands rewinding, slowly!!

The OP says 15VAC TO 20VAC. To me that means 15VAC primary to 20VAC secondary (ie N = 3:4). How can you ascertain any other primary voltage from this information?

"Gagi-9a6aag"

** One can only guess that because he has posted on the same issue before.

Just as ambiguously back then too - IIRC.

... Phil

i hope one day phil , that if terrorizm ever comes to australia , i hope thEY target you place first .....if i ever see you up the street i`d punch you fair square in the face . your a retard,

ha , your just one of these fuktards , that when some one has a car accident and dies , then someone says " oh , he died in a car accident " your the type of fuktard that says " oh no he didnt , he died cause the steering colum went thru his chest "

you must be screwing phil, .... so you must be arguing with yaself since you think your the groups new technical expert

Not the first and certainly not the last hence his twice a year moves

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any chance we can get "no one" kicked off this group ? since he`s just a tosser and knows NOTHING ABOUT GRAMMAR, SPELLING, COURTESY OR ELECTRONICS?

"Dennis #1"

any chance we can get "no one" kicked off this group ? since he`s just a tosser and knows NOTHING ABOUT GRAMMAR, SPELLING, COURTESY OR ELECTRONICS?

** Do you live in SA ??

... Phil

hey fuktard i wantg it 1million volts primary

oh look a sock poopet

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No.

Shrug!! The group seemed to get along before you came along with all your ethnic shit and self opinionated wonder at your knowledge of electronics. You are just a legend in your own little juvenile brain !!

Rheilly P

"Gagi-9a6aag"

** Oh, how wrong you are.

You pathetic f****it.

.... Phil

"Phil Allison" wrote

thanks for your lovely words...i didnt expect anything less then that :))

Morning all, I see many were burning the "midnight oils".

Looks like the group is alive and kicking, so all must be well with the world. Nice to see so many happy little vegimites this morning. :-)

Cheers Don...

===================

-- Don McKenzie

Dontronics Blog:

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These products will reduce in price by 5% every month:

Bare Proto PCB for PIC or AVR projects? "I'd buy that for a Dollar!".

You're a total plonker.

Yeah Don, the usual suspects are at it again. Hey, I dug out my 1989 SCs and found your project 'LED message board'. Providing an XT keyboard interface was a great feature. How well did that project sell ?

Fritz Hamburg, Germany (About 40km from the Krümmel nuclear plant, which has been offline since 2009 due to two transfomer failures. It was due to restart, but with the German government running scared it is now likely never to be used again. I visited the place several times last year.)