Version 4 SHEET 1 880 916 WIRE -208 352 -208 256 WIRE -208 496 -208 432 WIRE -208 752 -208 656 WIRE -208 896 -208 832 WIRE -160 256 -208 256 WIRE -160 656 -208 656 WIRE -16 256 -80 256 WIRE -16 288 -16 256 WIRE -16 384 -16 368 WIRE -16 400 -16 384 WIRE -16 496 -16 480 WIRE -16 656 -80 656 WIRE -16 688 -16 656 WIRE -16 784 -16 768 WIRE -16 800 -16 784 WIRE -16 896 -16 880 WIRE 64 256 -16 256 WIRE 64 320 64 256 WIRE 64 656 -16 656 WIRE 64 720 64 656 WIRE 96 320 64 320 WIRE 96 384 -16 384 WIRE 96 720 64 720 WIRE 96 784 -16 784 WIRE 336 352 240 352 WIRE 336 384 336 352 WIRE 336 496 336 464 WIRE 336 752 240 752 WIRE 336 784 336 752 WIRE 336 896 336 864 FLAG -16 496 0 FLAG -208 496 0 FLAG 336 496 0 FLAG 336 352 out FLAG -208 256 in FLAG -16 896 0 FLAG -208 896 0 FLAG 336 896 0 FLAG 336 752 out1 FLAG -208 656 in1 SYMBOL res -176 272 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL voltage -208 336 R0 SYMATTR InstName V1 SYMATTR Value 10V SYMBOL res 320 368 R0 SYMATTR InstName R4 SYMATTR Value 10k SYMBOL res -32 272 R0 SYMATTR InstName R5 SYMATTR Value 1k SYMBOL res -32 384 R0 SYMATTR InstName R2 SYMATTR Value 1k SYMBOL res -176 672 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R3 SYMATTR Value 1k SYMBOL voltage -208 736 R0 SYMATTR InstName V2 SYMATTR Value 10V SYMBOL res 320 768 R0 SYMATTR InstName R6 SYMATTR Value 10k SYMBOL res -32 672 R0 SYMATTR InstName R7 SYMATTR Value 1k SYMBOL res -32 784 R0 SYMATTR InstName R8 SYMATTR Value 1k SYMBOL switch_2_1o 176 736 R0 SYMATTR InstName U3 SYMBOL switch_2_1 176 336 R0 SYMATTR InstName U4 TEXT -216 96 Left 0 !.INCLUDE switch_2_1o.sub TEXT -216 136 Left 0 !.OP TEXT -208 -320 Left 0 ;Switches controlled by a paramter\nI recommend to keep the model files and the symbols in the directory of your schematic.\nAlternatevily the files could be saved in the installation path of LTspice.\nC:\\Progran Files\\Ltc\\Swcadiii\\lib\\sym\\...\nC:\\Progran Files\\Ltc\\Swcadiii\\lib\\sub\\...\n \nRightMouseClick on "sel=.." to change the switch position.\nAllowed values:\nsel=0\nsel=1\nsel=2 TEXT -216 56 Left 0 !.INCLUDE switch_2_1.sub