How much power can I have with (+)

VEC7OR · 8th August 2003, 12:34 PM

Big n Fat halogen trafos - they're toroidal and fairly cheap, but have only one winding and are 11,8v, maybe I can just unwind it and wind double winding(I dont have enough thick magnet wire...)
So heres the question - how much power I can have with tda7294 or lm3876(bridged or unbridged) assuming that I feed those with two halogen trafos, one for (+)rail bridge rectified, second for (-) rail bridge rectified too(around 24v unrectified, VA's nearly unlimited

up to 750...) ?

Trump · 26th February 2012, 07:51 PM

It's around +- 15V after rectifier. And with 4 Ohm load you will get a maximum of 25W (undridged). But these halogen transformators aren't very good for audio.

8th August 2003, 12:34 PM	#1
VEC7OR diyAudio Member Join Date: Jul 2003 Location: Vilnius	How much power can I have with (+) Big n Fat halogen trafos - they're toroidal and fairly cheap, but have only one winding and are 11,8v, maybe I can just unwind it and wind double winding(I dont have enough thick magnet wire...) So heres the question - how much power I can have with tda7294 or lm3876(bridged or unbridged) assuming that I feed those with two halogen trafos, one for (+)rail bridge rectified, second for (-) rail bridge rectified too(around 24v unrectified, VA's nearly unlimited up to 750...) ? __________________ Profanity took a very interesting form in Russia where there exists a language of sorts, most of its words based on four basic profane roots - nouns p...is, wh.0.e, c..t and verb f..k. It is possible to sensibly communicate using just these four basic roots.

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26th February 2012, 07:51 PM	#2
Trump diyAudio Member Join Date: Feb 2012	It's around +- 15V after rectifier. And with 4 Ohm load you will get a maximum of 25W (undridged). But these halogen transformators aren't very good for audio.