is this a bad idea or just might work ?

Started by petey twofinger, September 26, 2012, 06:56:57 AM

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petey twofinger

i ordered this amp board , its a 50 x 2 chip amp , it seems the psu unit that they recomend is 24 volts , 6.5 amps .

amp

http://www.ebay.com/itm/2-X-50-Watt-6-Ohm-Class-D-Audio-Amplifier-Board-TDA7492-50W-Stereo-Power-Amp-/110932798562?_trksid=p4340.m1850&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D11%26meid%3D2315459481425271830%26pid%3D100011%26prg%3D1005%26rk%3D1%26sd%3D350601511167%26

power supply

http://www.sure-hifi.com/?page_id=421

i dont have a 24 volt ps , but i do have a 19 volt , 3.5 amp one here , another laptop ps thats 19 , 4.62 as well .

now today i got a wii ps and a nintendo 64 ps , both 12 volts , like 3.5 amps or so ,  around there maybe a lil less . could i hook these up together , say in series ? would this be bad ?

one is 3.25 amps , the other is 3.7 , they are both type two , ul listed .

i am just looking for a cheap , safe solution , i spose i should fuse this stuff , mostly the amp will run off of two 12 volt sla batts i intend to hook up in series , but ocaisionaly i want a ps for indoor use .....


i would love to find some thing like 24 volts 4 - 6 amps but its rough . all the printers and scanners i see at resale are like 1 or almost two amps . the ones that have the removable ps . some are internal , but u can still remove em , i bet those are larger amps . hmmm .


thanks in advance , i am a real dunce when it comes to this stuff !





im learning , we'll thats what i keep telling myself

Pyr0

I wouldnt mix them.
That amp will run on 14v to 24v, so just use one of the 19v power supplies you have.