Be careful to make this amplifier, Risk is your own, Okay Brother Update!!!! Some line is mistake,so I change like this BOTTOM LINE UPDATE!!!! fix some bugs 2 June 2018 1. some line have blunders 2. Remove IC 7812 to transistor. 3. add dc 12 V with transistor BD 139,output DC for more stable. 4. much more adding 5. enjoy for the sound and music.! You can see at the bellow " click image to enlarge view "!!! BOTTOM BOTTOM MIRROR SILK SCREEN SILK SCREEN MIRROR Suggestion # IMPEDANCE power for this SUB-WOOFER OUTPUTS 70 watt # use 2 woofer as sub-woofer maximum 6 inch if you have an sub-woofer you can use 8 inch sub-woofer # transformer 3 until 5 Ampere PURE 18v-0- 18v recommended # use diode 3 until 4 Ampere # uses two satellites # enjoy......
education. organization. instinct, power of dream,Free Layout. but you do not sell this !!!!