Version 4 SHEET 1 1224 1496 WIRE 544 -32 544 -64 WIRE 400 -16 400 -48 WIRE 544 64 544 48 WIRE 544 64 496 64 WIRE 688 64 544 64 WIRE 832 64 752 64 WIRE 912 64 832 64 WIRE 928 64 912 64 WIRE 544 96 544 64 WIRE 832 112 832 64 WIRE -160 144 -160 64 WIRE 112 144 80 144 WIRE 160 144 112 144 WIRE 256 144 240 144 WIRE 352 144 320 144 WIRE 400 144 400 64 WIRE 400 144 352 144 WIRE 480 144 400 144 WIRE 80 192 80 144 WIRE 400 192 400 144 WIRE 544 208 544 192 WIRE 544 208 496 208 WIRE 624 208 544 208 WIRE 720 208 688 208 WIRE 544 224 544 208 WIRE 832 240 832 192 WIRE 720 272 720 208 WIRE -160 320 -160 224 WIRE 80 320 80 272 WIRE 400 320 400 272 WIRE 544 352 544 304 WIRE 544 496 544 464 WIRE 400 560 400 528 WIRE 544 608 544 576 WIRE 544 608 496 608 WIRE 656 608 544 608 WIRE 800 608 720 608 WIRE 880 608 800 608 WIRE 896 608 880 608 WIRE 544 656 544 608 WIRE 800 656 800 608 WIRE 256 704 208 704 WIRE 400 704 400 640 WIRE 400 704 320 704 WIRE 480 704 400 704 WIRE 400 752 400 704 WIRE 208 768 208 704 WIRE 800 784 800 736 WIRE 544 800 544 752 WIRE 544 800 496 800 WIRE 544 832 544 800 WIRE 112 880 80 880 WIRE 160 880 112 880 WIRE 256 880 240 880 WIRE 352 880 320 880 WIRE 400 880 400 832 WIRE 400 880 352 880 WIRE 480 880 400 880 WIRE -160 928 -160 848 WIRE 80 928 80 880 WIRE 400 928 400 880 WIRE 544 944 544 928 WIRE 544 944 496 944 WIRE 624 944 544 944 WIRE 720 944 688 944 WIRE 544 960 544 944 WIRE 720 1008 720 944 WIRE 80 1056 80 1008 WIRE 400 1056 400 1008 WIRE 544 1088 544 1040 WIRE -160 1104 -160 1008 FLAG -160 320 0 FLAG -160 64 VCC1 FLAG 544 -64 VCC1 FLAG 496 64 C1 FLAG 496 208 E1 FLAG 720 272 0 FLAG 832 240 0 FLAG 912 64 OUT1 FLAG 400 320 0 FLAG 80 320 0 FLAG 112 144 S1 FLAG 352 144 IN1 FLAG 544 352 0 FLAG 400 -48 VCC1 FLAG 544 464 VCC2 FLAG 496 800 C2 FLAG 496 944 E2 FLAG 720 1008 0 FLAG 800 784 0 FLAG 880 608 OUT2 FLAG 400 1056 0 FLAG 80 1056 0 FLAG 112 880 S2 FLAG 352 880 IN2 FLAG 544 1088 0 FLAG 400 528 VCC2 FLAG -160 1104 0 FLAG -160 848 VCC2 FLAG 496 608 C3 FLAG 208 768 0 SYMBOL voltage -160 128 R0 SYMATTR InstName Vps1 SYMATTR Value 12V SYMBOL res 528 -48 R0 SYMATTR InstName RC1 SYMATTR Value 6k SYMBOL npn 480 96 R0 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL res 528 208 R0 SYMATTR InstName RE1 SYMATTR Value 3.3k SYMBOL cap 752 48 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Cc2 SYMATTR Value 1µF SYMBOL cap 688 192 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName CE SYMATTR Value 10µF SYMBOL res 816 96 R0 SYMATTR InstName RL1 SYMATTR Value 4k SYMBOL res 384 176 R0 SYMATTR InstName RB1 SYMATTR Value 4k SYMBOL cap 320 128 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Cc1 SYMATTR Value 1µF SYMBOL res 256 160 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName Rs1 SYMATTR Value 4k SYMBOL voltage 80 176 R0 WINDOW 123 24 118 Left 2 SYMATTR Value2 AC 1V 0 SYMATTR InstName Vs1 SYMATTR Value 0V SYMBOL res 384 -32 R0 SYMATTR InstName RB2 SYMATTR Value 8k SYMBOL npn 480 832 R0 SYMATTR InstName Q2 SYMATTR Value 2N3904 SYMBOL res 528 944 R0 SYMATTR InstName RE2 SYMATTR Value 3.3k SYMBOL cap 720 592 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Cc3 SYMATTR Value 1µF SYMBOL cap 688 928 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName CE1 SYMATTR Value 10µF SYMBOL res 784 640 R0 SYMATTR InstName RL2 SYMATTR Value 4k SYMBOL res 384 912 R0 SYMATTR InstName RB3 SYMATTR Value 8k SYMBOL cap 320 864 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Cc4 SYMATTR Value 1µF SYMBOL res 256 896 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName Rs2 SYMATTR Value 4k SYMBOL voltage 80 912 R0 WINDOW 123 24 118 Left 2 SYMATTR Value2 AC 1V 0 SYMATTR InstName Vs2 SYMATTR Value 0V SYMBOL res 384 736 R0 SYMATTR InstName RB4 SYMATTR Value 4k SYMBOL voltage -160 912 R0 SYMATTR InstName Vps2 SYMATTR Value 15V SYMBOL res 384 544 R0 SYMATTR InstName RB5 SYMATTR Value 18k SYMBOL res 528 480 R0 SYMATTR InstName RC3 SYMATTR Value 6k SYMBOL npn 480 656 R0 SYMATTR InstName Q3 SYMATTR Value 2N3904 SYMBOL cap 320 688 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName CB1 SYMATTR Value 10µF TEXT 504 1312 Left 2 ;.OP TEXT 432 1216 Left 2 ;Spice Directive TEXT -224 1224 Left 2 ;Power Supplies TEXT 376 1264 Left 2 !.AC DEC 10 1Hz 1GHz