Version 4
SHEET 1 1240 680
WIRE 176 -64 -80 -64
WIRE 432 -64 176 -64
WIRE 928 -64 432 -64
WIRE 432 -16 432 -64
WIRE -80 16 -80 -64
WIRE 928 32 928 -64
WIRE 432 80 432 64
WIRE 512 80 432 80
WIRE 864 80 512 80
WIRE 176 144 176 -64
WIRE 432 144 432 80
WIRE -80 192 -80 96
WIRE -80 192 -160 192
WIRE 96 192 64 192
WIRE 112 192 96 192
WIRE 512 192 496 192
WIRE 544 192 512 192
WIRE 928 192 928 128
WIRE 1088 192 928 192
WIRE 1184 192 1088 192
WIRE -160 224 -160 192
WIRE 64 224 64 192
WIRE 544 224 544 192
WIRE 928 256 928 192
WIRE -80 272 -80 192
WIRE 176 272 176 240
WIRE 288 272 176 272
WIRE 352 272 288 272
WIRE 432 272 432 240
WIRE 432 272 352 272
WIRE 288 320 288 272
WIRE 544 352 544 304
WIRE -80 432 -80 352
WIRE 288 432 288 400
WIRE 288 432 -80 432
WIRE 928 432 928 336
WIRE 928 432 288 432
FLAG -160 224 0
FLAG 512 80 out
FLAG 544 352 0
FLAG 1088 192 out2
FLAG 64 224 0
FLAG 96 192 V-
FLAG 512 192 V+
FLAG 352 272 Vtail
SYMBOL npn 112 144 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL npn 496 144 M0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL res 416 -32 R0
SYMATTR InstName Rload
SYMATTR Value 2k
SYMBOL res 272 304 R0
SYMATTR InstName Rtail
SYMATTR Value 1k
SYMBOL voltage -80 0 R0
SYMATTR InstName V1
SYMATTR Value 6V
SYMBOL voltage -80 256 R0
SYMATTR InstName V2
SYMATTR Value 6V
SYMBOL voltage 544 208 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vin
SYMATTR Value ""
SYMBOL pnp 864 128 M180
SYMATTR InstName Q3
SYMATTR Value 2N3906
SYMBOL res 912 240 R0
SYMATTR InstName Rload2
SYMATTR Value 1k
TEXT -184 440 Left 2 !.dc Vin -6 6 0.001