Version 4
SHEET 1 1252 980
WIRE -1152 368 -1424 368
WIRE -944 368 -1152 368
WIRE -944 400 -944 368
WIRE -1424 416 -1424 368
WIRE -1152 416 -1152 368
WIRE -1056 480 -1008 448
WIRE -464 480 -464 368
WIRE 256 480 256 368
WIRE 592 496 592 464
WIRE -944 528 -944 496
WIRE -96 528 -96 432
WIRE -1152 544 -1152 496
WIRE -1056 544 -1056 480
WIRE -1056 544 -1152 544
WIRE -464 576 -464 560
WIRE -336 576 -464 576
WIRE 256 576 256 560
WIRE 384 576 256 576
WIRE -1168 592 -1152 544
WIRE -464 592 -464 576
WIRE 256 592 256 576
WIRE 384 592 384 576
WIRE -944 624 -944 608
WIRE -848 624 -944 624
WIRE -832 624 -848 624
WIRE -1424 640 -1424 496
WIRE -1360 640 -1424 640
WIRE -1264 640 -1296 640
WIRE -1232 640 -1264 640
WIRE -944 640 -944 624
WIRE -96 672 -96 608
WIRE -32 672 -32 640
WIRE -32 672 -96 672
WIRE 592 672 592 576
WIRE 688 672 688 640
WIRE 688 672 592 672
WIRE -1152 688 -1168 688
WIRE -1008 688 -1152 688
WIRE -336 688 -336 576
WIRE 384 688 384 672
WIRE -1504 704 -1568 704
WIRE -1424 704 -1424 640
WIRE -1424 704 -1440 704
WIRE -1264 736 -1264 640
WIRE -1152 736 -1152 688
WIRE -544 736 -608 736
WIRE -464 736 -464 672
WIRE -464 736 -480 736
WIRE -400 736 -464 736
WIRE -32 736 -32 672
WIRE 176 736 112 736
WIRE 256 736 256 672
WIRE 256 736 240 736
WIRE 320 736 256 736
WIRE 688 736 688 672
WIRE -1504 784 -1568 784
WIRE -1424 784 -1424 704
WIRE -1424 784 -1440 784
WIRE -288 784 -336 784
WIRE -176 784 -224 784
WIRE -96 784 -176 784
WIRE 432 784 384 784
WIRE 544 784 496 784
WIRE 624 784 544 784
WIRE -544 816 -608 816
WIRE -464 816 -464 736
WIRE -464 816 -480 816
WIRE 176 816 112 816
WIRE 256 816 256 736
WIRE 256 816 240 816
WIRE -176 832 -176 784
WIRE 544 832 544 784
WIRE -1264 848 -1264 816
WIRE -1152 848 -1152 816
WIRE -1152 848 -1264 848
WIRE -960 848 -1152 848
WIRE -944 848 -944 736
WIRE -944 848 -960 848
WIRE -960 864 -960 848
WIRE -176 944 -176 912
WIRE -80 944 -176 944
WIRE -32 944 -32 832
WIRE -32 944 -80 944
WIRE 544 944 544 912
WIRE 640 944 544 944
WIRE 688 944 688 832
WIRE 688 944 640 944
WIRE -80 960 -80 944
WIRE 640 960 640 944
FLAG 256 368 Vcc
FLAG 688 640 out2
FLAG 640 960 0
FLAG 112 736 a
FLAG 112 816 b
FLAG 1136 480 0
FLAG 1040 480 0
FLAG 944 480 0
FLAG 848 480 0
FLAG 1040 400 a
FLAG 1136 400 b
FLAG 944 400 Vex
FLAG 848 400 Vcc
FLAG -464 368 Vcc
FLAG -32 640 out1
FLAG -80 960 0
FLAG -608 736 a
FLAG -608 816 b
FLAG -96 432 Vcc
FLAG 592 464 Vcc
FLAG -960 864 0
FLAG -1568 704 a
FLAG -1568 784 b
FLAG -1152 368 Vcc
FLAG -848 624 out3
SYMBOL res 240 464 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 240 576 R0
SYMATTR InstName R2
SYMATTR Value 4k
SYMBOL res 368 576 R0
SYMATTR InstName R3
SYMATTR Value 1.33k
SYMBOL res 528 816 R0
SYMATTR InstName R4
SYMATTR Value 4k
SYMBOL diode 240 720 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 240 800 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL diode 432 800 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL npn 320 688 R0
WINDOW 3 94 30 Left 0
SYMATTR Value BC547B
SYMATTR InstName Q1
SYMBOL npn 624 736 R0
SYMATTR InstName Q2
SYMATTR Value BC547B
SYMBOL res 576 480 R0
SYMATTR InstName R5
SYMATTR Value 4.4k
SYMBOL voltage 848 384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage 944 384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL voltage 1040 384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -218 243 Left 0
SYMATTR Value PULSE(0 5 0 100n 100n 250n 1u 2)
SYMATTR InstName V3
SYMBOL voltage 1136 384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 5
SYMBOL res -480 464 R0
SYMATTR InstName R6
SYMATTR Value 1.75k
SYMBOL res -480 576 R0
SYMATTR InstName R7
SYMATTR Value 2k
SYMBOL res -192 816 R0
SYMATTR InstName R9
SYMATTR Value 5k
SYMBOL diode -288 800 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D5
SYMATTR Value 1N4148
SYMBOL npn -400 688 R0
WINDOW 3 94 30 Left 0
SYMATTR Value BC547B
SYMATTR InstName Q3
SYMBOL npn -96 736 R0
SYMATTR InstName Q4
SYMATTR Value BC547B
SYMBOL diode -480 720 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D7
SYMATTR Value 1N4148
SYMBOL diode -480 800 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D8
SYMATTR Value 1N4148
SYMBOL res -112 512 R0
SYMATTR InstName R10
SYMATTR Value 6k
SYMBOL res -1440 400 R0
SYMATTR InstName R8
SYMATTR Value 4.4k
SYMBOL res -1168 720 R0
SYMATTR InstName R13
SYMATTR Value 4k
SYMBOL diode -1440 688 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D4
SYMATTR Value 1N4148
SYMBOL diode -1440 768 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D6
SYMATTR Value 1N4148
SYMBOL npn -1232 592 R0
WINDOW 3 94 30 Left 0
SYMATTR Value BC547B
SYMATTR InstName Q5
SYMBOL npn -1008 640 R0
SYMATTR InstName Q6
SYMATTR Value BC547B
SYMBOL res -1168 400 R0
SYMATTR InstName R14
SYMATTR Value 3.4k
SYMBOL diode -1360 656 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D9
SYMATTR Value 1N4148
SYMBOL res -1280 720 R0
SYMATTR InstName R11
SYMATTR Value 12k
SYMBOL res -960 512 R0
SYMATTR InstName R12
SYMATTR Value 500
SYMBOL npn -1008 400 R0
SYMATTR InstName Q7
SYMATTR Value BC547B
TEXT 824 672 Left 0 !.tran 1u
TEXT -408 416 Left 0 ;MOT 930 series 1964
TEXT -384 456 Left 0 ;orig Bf=50
TEXT 336 384 Left 0 ;SIGNETICS 8417
TEXT -1352 232 Left 0 ;SIGNETICS 8416