http://www.falstad.com/circuit/circuitjs.html?cct=$+1+0.0000049999999999999996+10.20027730826997+50+5+50%0A183+160+16+224+16+0+0.5+2.5+2.5%0A183+336+0+416+0+0+0.5+2.5+2.5%0Ar+256+144+320+144+0+110000%0Aw+416+144+464+144+0%0Aw+464+144+464+80+0%0Aw+464+80+128+80+0%0Aw+128+80+128+144+0%0Aw+128+144+160+144+0%0Aw+224+144+256+144+0%0Aw+320+144+336+144+0%0Ar+464+160+464+224+0+100000%0Ac+464+256+464+320+0+2.2e-7+2.5000000000023914%0Ag+464+336+464+368+0%0As+368+240+416+240+0+1+true%0Aw+464+144+464+160+0%0Aw+464+224+464+240+0%0Aw+464+240+416+240+0%0Aw+464+240+464+256+2%0Aw+464+320+464+336+0%0Aw+368+240+352+240+0%0Aw+352+240+336+240+0%0Aw+336+240+336+144+0%0Aw+464+144+512+144+2%0AI+160+144+224+144+0+0.5+5%0AI+336+144+416+144+0+0.5+5%0Ao+21+64+0+4103+5+0.00009765625+0+2+21+3%0Ao+16+64+0+4103+5+0.00009765625+0+2+16+3%0Ao+22+64+0+4103+5+0.00009765625+0+2+22+3%0A