We are using your Kitronic Deluxe MP3 amplifier kits with our GCSE group and we have some left over ICSAT "sound to light" and "light chaser". modules that we would like our more capable students to incorporate with your kit/ I've confirmed that this is possible with ICSAT however their kits are 3 v to 5v and the Kitronic Amp kit is 9 volt.
Is it possible we can piggy back off the Deluxe MP3 kit 9v supply using the L7805 5V Reg IC ? and if so can you recommend the best way to do this.
Many thanks in advance.