Version 4
SHEET 1 2212 744
WIRE 560 -304 272 -304
WIRE 272 -288 272 -304
WIRE 432 -288 272 -288
WIRE 944 -288 528 -288
WIRE 432 -272 432 -288
WIRE 528 -272 528 -288
WIRE 560 -272 560 -304
WIRE 768 -272 656 -272
WIRE 944 -272 944 -288
WIRE 144 -176 -384 -176
WIRE 272 -176 272 -288
WIRE 272 -176 144 -176
WIRE 288 -176 272 -176
WIRE 384 -176 368 -176
WIRE 480 -176 480 -208
WIRE 608 -176 608 -208
WIRE 608 -176 480 -176
WIRE 640 -176 608 -176
WIRE 768 -176 768 -192
WIRE 768 -176 720 -176
WIRE 944 -176 944 -192
WIRE 944 -176 768 -176
WIRE 272 -160 272 -176
WIRE 608 -80 608 -176
WIRE 272 -48 272 -80
WIRE 432 -48 432 -112
WIRE 432 -48 272 -48
WIRE 144 -16 144 -176
WIRE 272 -16 272 -48
WIRE 944 32 944 -176
WIRE 608 80 608 -16
WIRE 608 80 352 80
WIRE 640 80 608 80
WIRE 768 80 768 -176
WIRE 768 80 720 80
WIRE 416 128 352 128
WIRE 768 128 768 80
WIRE -224 144 -304 144
WIRE -160 144 -224 144
WIRE 64 144 -160 144
WIRE -304 176 -304 144
WIRE 384 176 352 176
WIRE 464 176 384 176
WIRE 608 176 608 80
WIRE 608 176 544 176
WIRE -384 224 -384 -176
WIRE 448 240 352 240
WIRE 768 240 768 208
WIRE 768 240 448 240
WIRE -160 256 -160 224
WIRE 448 256 448 240
WIRE 64 272 16 272
WIRE 16 304 16 272
WIRE 16 304 -112 304
WIRE 448 336 448 320
WIRE 448 336 352 336
WIRE 544 336 448 336
WIRE 672 336 624 336
WIRE 768 336 768 240
WIRE 768 336 736 336
WIRE -160 416 -160 336
WIRE -112 416 -160 416
WIRE 16 416 16 304
WIRE 16 416 -32 416
WIRE -224 464 -224 144
WIRE 592 464 -224 464
WIRE 768 464 768 336
WIRE 768 464 672 464
WIRE -304 480 -304 256
WIRE 416 512 416 128
WIRE 416 512 -256 512
WIRE -160 544 -160 416
WIRE 768 544 768 464
WIRE -304 640 -304 560
WIRE -160 640 -160 624
WIRE -160 640 -304 640
WIRE 208 640 208 432
WIRE 208 640 -160 640
WIRE 768 640 768 624
WIRE 768 640 208 640
WIRE 880 640 768 640
WIRE 944 640 944 112
WIRE 944 640 880 640
WIRE 880 672 880 640
WIRE -384 736 -384 304
WIRE 384 736 384 176
WIRE 384 736 -384 736
WIRE 944 736 944 720
WIRE 944 736 384 736
FLAG 880 672 0
SYMBOL PowerProducts\\LM723 208 112 R0
SYMATTR InstName U1
SYMBOL voltage -384 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value 36
SYMBOL res 256 -176 R0
SYMATTR InstName R5
SYMATTR Value 180
SYMBOL pnp 480 -112 M270
WINDOW 0 -25 79 Left 2
WINDOW 3 -70 19 Left 2
SYMATTR InstName Q1
SYMATTR Value Qtip32
SYMBOL res 928 16 R0
SYMATTR InstName RL
SYMATTR Value 8
SYMBOL res 928 624 R0
SYMATTR InstName RS
SYMATTR Value .11
SYMBOL res 736 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 270
SYMBOL potentiometer -176 240 R0
WINDOW 3 27 0 Left 2
SYMATTR Value Rtot=4K7 wiper=X
SYMATTR InstName U2
SYMBOL res 624 -160 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 10
SYMBOL cap 736 320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 22n
SYMATTR SpiceLine V=100 Irms=.1 Rser=.01 Lser=10n
SYMBOL res -320 160 R0
SYMATTR InstName R1
SYMATTR Value 5k6
SYMBOL potentiometer -320 576 M180
WINDOW 3 -61 -84 Left 2
SYMATTR Value Rtot=1k wiper=0.999
SYMATTR InstName U3
SYMBOL npn 432 -208 R270
SYMATTR InstName Q2
SYMATTR Value 2N3055
SYMBOL npn 560 -208 R270
SYMATTR InstName Q3
SYMATTR Value 2N3055
SYMBOL res 752 -288 R0
SYMATTR InstName R8
SYMATTR Value .16
SYMBOL res 928 -288 R0
SYMATTR InstName R9
SYMATTR Value .16
SYMBOL res -16 400 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 2k2
SYMBOL res -176 528 R0
SYMATTR InstName R4
SYMATTR Value 2k2
SYMBOL res 752 112 R0
SYMATTR InstName R12
SYMATTR Value 8k2
SYMBOL res 752 528 R0
SYMATTR InstName R15
SYMATTR Value 1k
SYMBOL res 688 448 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R14
SYMATTR Value 2k2
SYMBOL res -176 128 R0
SYMATTR InstName R2
SYMATTR Value 2k2
SYMBOL res 640 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 100
SYMBOL res 560 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 2k7
SYMBOL res 384 -192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 10
SYMBOL cap 592 -80 R0
SYMATTR InstName C2
SYMATTR Value 100p
SYMBOL cap 432 256 R0
SYMATTR InstName C4
SYMATTR Value 330p
TEXT 1032 264 Left 2 !.tran 10m startup
TEXT 1032 88 Left 2 !.SUBCKT potentiometer 1 2 3\n\n.param w=limit(wiper,1m,.999)\n\nR0 1 3 {Rtot*(1-w)}\n\nR1 3 2 {Rtot*(w)}\n\n.ENDS
TEXT 1032 232 Left 2 !.step param X 0 1 .05
TEXT 1032 -272 Left 2 !.MODEL Qtip32 pnp\n+IS=1e-09 BF=134.366 NF=1.29961 VAF=10\n+IKF=0.742988 ISE=1e-16 NE=1.40014 BR=0.1\n+NR=1.46599 VAR=100 IKR=3.21978 ISC=1e-16\n+NC=2.71657 RB=7.44433 IRB=2.41268 RBM=0.218936\n+RE=0.0152284 RC=0.0761421 XTB=0.1 XTI=1\n+EG=1.05 CJE=3.26474e-10 VJE=0.446178 MJE=0.464223\n+TF=1e-08 XTF=3.50642 VTF=8.2848 ITF=0.0305862\n+CJC=3.07595e-10 VJC=0.77548 MJC=0.476497 XCJC=0.799334\n+FC=0.8 CJS=0 VJS=0.75 MJS=0.5\n+TR=9.57121e-06 PTF=0 KF=0 AF=1