There are lots of choices for 60 watts. For 70, you may have to pay more.
One choice is:
http://www.mpja.com/prodinfo.asp?number=16011+PS
but it seems to be out of stock.
There are lots of choices for 60 watts. For 70, you may have to pay more.
One choice is:
http://www.mpja.com/prodinfo.asp?number=16011+PS
but it seems to be out of stock.