* SPICE netlist
Q3 N002 Vb3 N001 0 2N5401C
Q6 Vb7 Vb6 Vpos 0 2N5401C
Vin VIN N004 AC 1
C1 Vb9 Vb4 300p
Q4 Vb9 Vb4 N005 0 2N5551C
R9 Vpos Vb6 62
Q7 Vb8 Vb7 Vb6 0 2N5401C
R6 N005 Vneg 22
R1 Vb4 Vneg 1k
Q1 Vb4 VIN N002 0 2N5401C
Q2 Vneg Vb2 N002 0 2N5401C
R5 Vpos N001 620
R4 Vb3 0 33k
Vpos Vpos 0 35
R3 Vout Vb2 19k
Vneg 0 Vneg 35
R2 Vb2 0 1k
Q8 Vpos Vb8 vb10 0 mje243C
Q9 Vneg Vb9 vb11 0 mje253C
R14 Vout vb 0.33
R13 vt Vout 0.33
Q10 Vpos vb10 vt 0 mjl21194C
Q11 Vneg vb11 vb 0 mjl21193C
R12 Vout vb11 33
D1 Vpos Vb3 GREEN
R10 Vb7 0 33k
RL Vout 0 8.0
R11 vb10 Vout 33
Voffset N004 0 0.0023
Q5 Vb8 N003 Vb9 0 2N5551C
R8 Vb8 N003 1.2k
R7 N003 Vb9 471
;op
;ac dec 10 100 1Meg
.noise V(Vout) Vin dec 20 20 2000k
.include Cordell_Mods

* LTspice schematic (.asc)
Version 4
SHEET 1 1680 1504
WIRE -440 -752 -664 -752
WIRE -56 -752 -440 -752
WIRE 104 -752 -56 -752
WIRE 296 -752 104 -752
WIRE 408 -752 296 -752
WIRE 616 -752 408 -752
WIRE 824 -752 616 -752
WIRE 104 -720 104 -752
WIRE -440 -704 -440 -752
WIRE 824 -688 824 -752
WIRE -664 -656 -664 -752
WIRE -56 -656 -56 -752
WIRE 40 -608 8 -608
WIRE 104 -608 104 -640
WIRE 104 -608 40 -608
WIRE -440 -592 -440 -624
WIRE 104 -560 104 -608
WIRE -664 -544 -664 -592
WIRE -568 -544 -664 -544
WIRE -504 -544 -568 -544
WIRE 824 -528 824 -608
WIRE -56 -512 -56 -560
WIRE -8 -512 -56 -512
WIRE 40 -512 -8 -512
WIRE -664 -496 -664 -544
WIRE -56 -432 -56 -512
WIRE 408 -432 408 -752
WIRE 104 -384 104 -464
WIRE 248 -384 104 -384
WIRE 344 -384 248 -384
WIRE -664 -368 -664 -416
WIRE 616 -352 616 -752
WIRE -56 -304 -56 -352
WIRE 408 -304 408 -336
WIRE 504 -304 408 -304
WIRE 552 -304 504 -304
WIRE 408 -256 408 -304
WIRE -440 -240 -440 -496
WIRE -440 -240 -600 -240
WIRE -280 -240 -440 -240
WIRE 616 -240 616 -256
WIRE 616 -224 616 -240
WIRE -600 -128 -600 -240
WIRE -280 -128 -280 -240
WIRE -824 -80 -840 -80
WIRE -664 -80 -824 -80
WIRE -184 -80 -216 -80
WIRE -136 -80 -184 -80
WIRE -88 -80 -136 -80
WIRE 408 -80 408 -176
WIRE 408 -80 -8 -80
WIRE 616 -80 616 -144
WIRE 712 -80 616 -80
WIRE 840 -80 712 -80
WIRE 408 -48 408 -80
WIRE 616 -48 616 -80
WIRE 616 -48 408 -48
WIRE 104 -32 104 -384
WIRE 216 -32 104 -32
WIRE -840 -16 -840 -80
WIRE -184 -16 -184 -80
WIRE 216 -16 216 -32
WIRE 840 0 840 -80
WIRE 104 48 104 -32
WIRE 216 96 216 64
WIRE 216 96 168 96
WIRE -840 112 -840 64
WIRE -184 112 -184 64
WIRE 616 112 616 -48
WIRE 216 128 216 96
WIRE 840 144 840 80
WIRE 408 160 408 -48
WIRE 616 208 616 192
WIRE -840 224 -840 192
WIRE 104 224 104 144
WIRE 216 224 216 208
WIRE 216 224 104 224
WIRE 616 224 616 208
WIRE 408 272 408 240
WIRE 488 272 408 272
WIRE 552 272 488 272
WIRE 408 304 408 272
WIRE 104 352 104 224
WIRE 264 352 104 352
WIRE 344 352 264 352
WIRE -56 368 -120 368
WIRE 104 368 104 352
WIRE 104 368 8 368
WIRE 104 464 104 368
WIRE -600 512 -600 -32
WIRE -408 512 -600 512
WIRE -120 512 -120 368
WIRE -120 512 -408 512
WIRE 40 512 -120 512
WIRE 840 512 712 512
WIRE -600 560 -600 512
WIRE 712 576 712 512
WIRE 840 576 840 512
WIRE 104 592 104 560
WIRE -600 752 -600 640
WIRE -280 752 -280 -32
WIRE -280 752 -600 752
WIRE 104 752 104 672
WIRE 104 752 -280 752
WIRE 248 752 104 752
WIRE 408 752 408 400
WIRE 408 752 248 752
WIRE 616 752 616 320
WIRE 616 752 408 752
WIRE 840 752 840 656
WIRE 840 752 616 752
FLAG -840 224 0
FLAG -824 -80 VIN
FLAG -664 -368 0
FLAG -184 112 0
FLAG 712 576 0
FLAG 824 -528 0
FLAG 616 -240 vt
FLAG 616 208 vb
FLAG 504 -304 vb10
FLAG 488 272 vb11
FLAG -56 -304 0
FLAG 840 144 0
FLAG 248 -384 Vb8
FLAG 264 352 Vb9
FLAG -136 -80 Vb2
FLAG -568 -544 Vb3
FLAG -408 512 Vb4
FLAG 40 -608 Vb6
FLAG -8 -512 Vb7
FLAG 712 -80 Vout
FLAG 296 -752 Vpos
FLAG 248 752 Vneg
SYMBOL pnp -504 -496 M180
SYMATTR InstName Q3
SYMATTR Value 2N5401C
SYMBOL pnp 8 -560 R180
SYMATTR InstName Q6
SYMATTR Value 2N5401C
SYMBOL voltage -840 -32 R0
SYMATTR Value2 AC 1
SYMATTR Value ""
SYMATTR InstName Vin
SYMBOL cap 8 352 R90
SYMATTR InstName C1
SYMATTR Value 300p
SYMBOL npn 40 464 R0
SYMATTR InstName Q4
SYMATTR Value 2N5551C
SYMBOL res 88 -736 R0
SYMATTR InstName R9
SYMATTR Value 62
SYMBOL pnp 40 -464 M180
SYMATTR InstName Q7
SYMATTR Value 2N5401C
SYMBOL res 88 576 R0
SYMATTR InstName R6
SYMATTR Value 22
SYMBOL res -616 544 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL pnp -664 -32 M180
SYMATTR InstName Q1
SYMATTR Value 2N5401C
SYMBOL pnp -216 -32 R180
SYMATTR InstName Q2
SYMATTR Value 2N5401C
SYMBOL res -456 -720 R0
SYMATTR InstName R5
SYMATTR Value 620
SYMBOL res -680 -512 R0
SYMATTR InstName R4
SYMATTR Value 33k
SYMBOL voltage 824 -704 R0
SYMATTR InstName Vpos
SYMATTR Value 35
SYMBOL res 8 -96 R90
SYMATTR InstName R3
SYMATTR Value 19k
SYMBOL voltage 840 560 R0
SYMATTR InstName Vneg
SYMATTR Value 35
SYMBOL res -200 -32 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL npn 344 -432 R0
SYMATTR Value mje243C
SYMATTR InstName Q8
SYMBOL pnp 344 400 M180
SYMATTR InstName Q9
SYMATTR Value mje253C
SYMBOL res 600 96 R0
SYMATTR InstName R14
SYMATTR Value 0.33
SYMBOL res 600 -240 R0
SYMATTR InstName R13
SYMATTR Value 0.33
SYMBOL npn 552 -352 R0
SYMATTR InstName Q10
SYMATTR Value mjl21194C
SYMBOL pnp 552 320 M180
SYMATTR InstName Q11
SYMATTR Value mjl21193C
SYMBOL res 392 144 R0
SYMATTR InstName R12
SYMATTR Value 33
SYMBOL LED -680 -656 R0
SYMATTR InstName D1
SYMATTR Value GREEN
SYMBOL res -72 -448 R0
SYMATTR InstName R10
SYMATTR Value 33k
SYMBOL res 824 -16 R0
SYMATTR InstName RL
SYMATTR Value 8.0
SYMBOL res 392 -272 R0
SYMATTR InstName R11
SYMATTR Value 33
SYMBOL voltage -840 96 R0
SYMATTR InstName Voffset
SYMATTR Value 0.0023
SYMBOL npn 168 48 M0
SYMATTR InstName Q5
SYMATTR Value 2N5551C
SYMBOL res 200 -32 R0
SYMATTR InstName R8
SYMATTR Value 1.2k
SYMBOL res 200 112 R0
SYMATTR InstName R7
SYMATTR Value 471