Transistors - ica manufacturing, *most orders ship the same day!* spotlight item. 2sc2879a toshiba transistors. 200w amplifier circuit tda2030 pcb | electronics, 2 piece tda2030a output power transistors connecting the power upgraded 200w amp circuit we all know i think this circuit, the first in 2000 elektor i saw it in. 100 watt guitar amplifier circuit (mkii) - electro kits, Pcb plans and circuit diagram (schematic) for what appears to be an extremely nice 100 watt guitar amplifier. includes preamplifier and power amplifier circuit.