Friends you many may like Older power amplifier Circuit. Today I begs for to advise Integrated power amplifier OTL 35w by 2N3055. Be interesting circuit because moderately sound 35Watt at 8 ohm loudspeakers from the circuit thinks. Be model OTL then build easy ,economize and durable. Besides still have a button fines to decorate the sound fully such as , Volume,Bass,Treble ,MID Range etc. Then convenient for you who are a novice want to build power amp circuit. Keep use by oneself and I has model PCB simplely give friends. Get convenient in building with Have a good time. With the sound of music please sir.