how do you get trafos to work on DC?

[phase_accurate]

Forgot to mention: It is "air" that is often used at RF.

Regards

Charles

 

[AudioFreak]

did it really work wif a wooden core? i thought u need a iron core....

The wood essentially does nothing other than act as a support. Just having the windings very close together is enough to get them to act as a transformer (in some fashion). Coupling is generally rather bad (without the magnetic core), as is efficiency, but it still works and you dont have to deal with iron losses, eddy currents etc..

 

[hacknet]

can i buy 50hz toroidal cores frm RS componetS?

 

[sam9]

Inverter

Maybe you want to do a google search under the keyword "inverter". You can find a project related to this at: sound.au.com.

 

[hacknet]

iz it the switching psu for carz? nah... datz no use