Version 4
SHEET 1 880 744
WIRE 208 -480 -160 -480
WIRE 368 -480 208 -480
WIRE -160 -416 -160 -480
WIRE 368 -400 368 -480
WIRE 208 -336 208 -480
WIRE -160 -288 -160 -336
WIRE 368 -256 368 -320
WIRE 368 -256 32 -256
WIRE 432 -256 368 -256
WIRE 32 -208 32 -256
WIRE 208 -128 208 -336
WIRE 368 -96 368 -256
WIRE 32 -80 32 -128
WIRE 144 -80 32 -80
WIRE 32 -32 32 -80
WIRE 208 -16 208 -32
WIRE -64 80 -160 80
WIRE 208 80 208 64
WIRE 208 80 -64 80
WIRE 368 80 368 -32
WIRE 368 80 208 80
WIRE 208 96 208 80
WIRE 32 128 32 32
WIRE -160 176 -160 80
WIRE 208 192 208 176
WIRE 32 240 32 192
WIRE 144 240 32 240
WIRE 32 288 32 240
WIRE -384 336 -464 336
WIRE -272 336 -320 336
WIRE -160 336 -160 256
WIRE -160 336 -192 336
WIRE -96 336 -160 336
WIRE -32 336 -96 336
WIRE -464 384 -464 336
WIRE -160 400 -160 336
WIRE -464 528 -464 464
WIRE -160 528 -160 480
WIRE -160 528 -464 528
WIRE 32 528 32 384
WIRE 32 528 -160 528
WIRE 208 528 208 288
WIRE 208 528 32 528
WIRE 32 560 32 528
FLAG -160 -288 0
FLAG 32 560 0
FLAG 432 -256 OUT
DATAFLAG -64 80 "round($*1k)/1k"
DATAFLAG -96 336 "round($*1k)/1k"
DATAFLAG 208 -336 "round(Ic(Q1)*10k)/10k"
SYMBOL npn 144 -128 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL npn -32 288 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL pnp 144 288 M180
SYMATTR InstName Q3
SYMATTR Value 2N2907
SYMBOL res 192 -32 R0
SYMATTR InstName R1
SYMATTR Value 4.7
SYMBOL res 192 80 R0
SYMATTR InstName R2
SYMATTR Value 4.7
SYMBOL res 352 -416 R0
SYMATTR InstName R3
SYMATTR Value 25
SYMBOL polcap 352 -96 R0
SYMATTR InstName C1
SYMATTR Value 470µ
SYMBOL res 16 -224 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL res -176 160 R0
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL diode 16 -32 R0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 16 128 R0
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL polcap -320 320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 47µ
SYMBOL voltage -464 368 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=600
SYMATTR InstName V1
SYMATTR Value SINE(0 5m 1k)
SYMBOL voltage -160 -432 R0
SYMATTR InstName V2
SYMATTR Value 9
SYMBOL res -176 384 R0
SYMATTR InstName R6
SYMATTR Value 33k
SYMBOL res -288 352 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 470
TEXT -464 600 Left 2 !.tran 0 100m 90m 2u
TEXT -464 648 Left 2 !.FOUR 1k V(OUT)
TEXT -352 -544 Left 2 ;V=50
TEXT -464 688 Left 2 !.options plotwinsize=0
TEXT -456 728 Left 2 ;http://www.youtube.com/watch?feature=player_embedded&v=-fIpj2eHL0k
LINE Normal 320 -304 320 -432 2
LINE Normal 480 -304 320 -304 2
LINE Normal 480 -432 480 -304 2
LINE Normal 320 -432 480 -432 2
LINE Normal 320 -432 320 -432 2
LINE Normal 544 -496 480 -432 2
LINE Normal 544 -256 544 -496 2
LINE Normal 480 -304 544 -256 2