* source CH12_EX12-4
R_R8         VIN N04270  100k  
V_V2         0 VEE 12V
V_V1         VCC 0 12V
V_V3         VIN 0  
+SIN 0v 10v 10Hz 0 0 0
X_U1         N04270 0 VCC VEE VOUT uA741
R_R3         N04270 VOUT  400k  
