该放大器的放大倍数: 12÷(5.1+1) +1=2.96 (倍)

37脚电压: 0.6÷(12+5.1+1) x (5.1+1) =0.2V

36脚电压:0.2x2.96=0.59V

38脚电压: 0.59÷(12+5.1+1) x (5.1+1) =0.2V