This is for people who knows to works with mains AC ! There is live mains involved, be careful! <br />How to make a differential dual power supply using refurbished laptop power supplies 150W +-19.6V DC.Perfect for small home amplifiers.<br />00:00 enter the actors<br />00:50 let's check the laptop power supplies<br />01:43 dismantle and more checks<br />02:15 Don't try that at home !<br />03:16 dismantle second PS<br />04:55 let's pack the PS<br />06:39 Last test ! <br />07:55 There we are ! A perfect dual PS !<br />...<br /><a href="https://www.youtube.com/watch?v=oDnIL6spdUE" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=oDnIL6spdUE</a>