* SPICE netlist
XU1 N001 N008 Vp Vn N009 LT1001 ;pnba In+)In-)V+)V-)OUT
V1 Vp 0 10
V2 0 Vn 10
RV2A N003 N002 {Rfreq_pot}
R6 N010 N008 4.99k
R4 N010 N009 10k
RV1 0 N011 2.4k
R18 N011 N008 4.99k
C2 N002 N001 {Cset}
C1 0 N001 {Cset}
RV2B N006 N001 {Rfreq_pot}
D1 N010 N008 1N4148
D2 N008 N010 1N4148
V3 N007 0 PWL(0 {vkick} 1m {vkick} 6m 0.0)
R9 N009 N003 1k
R3 Out N009 1k
R14 N007 N006 1k
B100 0 T I=V(A,0)*I(rlamp1)/({vlamp}*{ilamp})
R100 T 0 1
C100 T 0 0.05
Rlamp1 A 0 R=rcold*10**((V(T)+T0n)/(6*T0n))
R1 FB_BULB A 25
C7 N009 N008 22pF
R2 N012 FB_BULB 25
RV3 N012 OUT_BULB 415
.tran 5
.param vkick=0.1
.param Rfreq_pot=10k
.param Cset=100nF
.param vlamp=28 ilamp=43m ratio=0.2
.param rhot=vlamp/ilamp rcold=rhot*ratio
.param T0n=1/(6*log10(rhot/rcold)-1)

* LTspice schematic (.asc)
Version 4
SHEET 1 1984 1712
WIRE 192 -840 160 -840
WIRE 368 -840 256 -840
WIRE 496 -840 448 -840
WIRE 624 -840 576 -840
WIRE 320 -728 320 -744
WIRE 32 -712 -96 -712
WIRE 160 -712 160 -840
WIRE 160 -712 32 -712
WIRE 288 -712 160 -712
WIRE 624 -696 624 -840
WIRE 624 -696 352 -696
WIRE 768 -696 624 -696
WIRE 992 -696 848 -696
WIRE -96 -680 -96 -712
WIRE 32 -680 32 -712
WIRE 288 -680 144 -680
WIRE 320 -648 320 -664
WIRE 32 -568 32 -616
WIRE -912 -552 -912 -584
WIRE 144 -552 144 -680
WIRE 320 -552 144 -552
WIRE 624 -552 624 -696
WIRE 624 -552 384 -552
WIRE -96 -504 -96 -600
WIRE -912 -440 -912 -472
WIRE -912 -440 -992 -440
WIRE -912 -408 -912 -440
WIRE -992 -392 -992 -440
WIRE -96 -376 -96 -424
WIRE 256 -376 192 -376
WIRE 336 -376 256 -376
WIRE 736 -376 672 -376
WIRE 816 -376 736 -376
WIRE 144 -312 144 -552
WIRE 336 -312 144 -312
WIRE 624 -312 624 -552
WIRE 816 -312 624 -312
WIRE -912 -296 -912 -328
WIRE 336 -248 144 -248
WIRE 816 -248 624 -248
WIRE -96 -232 -96 -296
WIRE 624 -200 624 -248
WIRE 144 -72 144 -248
WIRE 368 -72 144 -72
WIRE 448 -72 368 -72
WIRE 624 -72 624 -120
WIRE 624 -72 528 -72
WIRE 144 -8 144 -72
WIRE 368 40 368 -72
WIRE 432 40 368 40
WIRE 624 40 624 -72
WIRE 624 40 496 40
WIRE 368 120 368 40
WIRE 480 120 368 120
WIRE 624 120 624 40
WIRE 624 120 544 120
WIRE 144 136 144 72
WIRE 144 248 144 216
WIRE -720 328 -784 328
WIRE -640 328 -720 328
WIRE -496 328 -640 328
WIRE -320 328 -416 328
WIRE -80 328 -240 328
WIRE -48 328 -80 328
WIRE -640 392 -640 328
WIRE -640 552 -640 472
WIRE -640 568 -640 552
WIRE 336 584 336 536
WIRE 336 584 224 584
WIRE 432 584 336 584
WIRE 224 648 224 584
WIRE 336 648 336 584
WIRE -640 664 -640 648
WIRE 432 664 432 584
WIRE -640 776 -640 664
WIRE 224 808 224 728
WIRE 336 808 336 728
WIRE 336 808 224 808
WIRE 432 808 432 728
WIRE 432 808 336 808
WIRE 336 856 336 808
FLAG -992 -392 0
FLAG -912 -584 Vp
FLAG 320 -648 Vp
FLAG -912 -296 Vn
FLAG 320 -744 Vn
FLAG 32 -568 0
FLAG -96 -232 0
FLAG 144 248 0
FLAG 992 -696 Out
IOPIN 928 240 Out
FLAG 336 536 T
FLAG 336 856 0
FLAG -640 552 A
IOPIN -704 1488 BiDir
FLAG -640 664 B
IOPIN -704 1600 BiDir
FLAG -640 776 0
FLAG 736 -376 OUT_BULB
FLAG 256 -376 FB_BULB
FLAG -720 328 FB_BULB
FLAG -80 328 OUT_BULB
SYMBOL Opamps\\OP07 320 -632 M180
SYMATTR InstName U1
SYMBOL voltage -912 -568 R0
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL voltage -912 -424 R0
SYMATTR InstName V2
SYMATTR Value 10
SYMBOL res 464 -856 R90
SYMATTR InstName RV2A
SYMATTR Value {Rfreq_pot}
SYMBOL res 544 -88 R90
SYMATTR InstName R6
SYMATTR Value 4.99k
SYMBOL res 640 -104 R180
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL res 160 232 R180
SYMATTR InstName RV1
SYMATTR Value 2.4k
SYMBOL res 160 88 R180
SYMATTR InstName R18
SYMATTR Value 4.99k
SYMBOL cap 256 -856 R90
SYMATTR InstName C2
SYMATTR Value {Cset}
SYMBOL cap 16 -616 M180
SYMATTR InstName C1
SYMATTR Value {Cset}
SYMBOL res -80 -584 R180
SYMATTR InstName RV2B
SYMATTR Value {Rfreq_pot}
SYMBOL diode 496 24 R90
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 480 136 R270
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL voltage -96 -392 R0
SYMATTR Value PWL(0 {vkick} 1m {vkick} 6m 0.0)
SYMATTR InstName V3
SYMBOL res 592 -856 R90
SYMATTR InstName R9
SYMATTR Value 1k
SYMBOL res 864 -712 R90
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res -80 -408 R180
SYMATTR InstName R14
SYMATTR Value 1k
SYMBOL bi2 224 648 R0
SYMATTR Value I=V(A,B)*I(rlamp1)/({vlamp}*{ilamp})
SYMATTR InstName B100
SYMBOL res 320 632 R0
SYMATTR InstName R100
SYMATTR Value 1
SYMBOL cap 416 664 R0
SYMATTR InstName C100
SYMATTR Value 0.05
SYMBOL res -624 552 M0
SYMATTR InstName Rlamp1
SYMATTR Value R=rcold*10**((V(T)+T0n)/(6*T0n))
SYMBOL res -656 376 R0
SYMATTR InstName R1
SYMATTR Value 25
SYMBOL Misc\\jumper 880 -280 R90
SYMATTR InstName X2
SYMBOL cap 384 -568 R90
SYMATTR InstName C7
SYMATTR Value 22pF
SYMBOL Misc\\jumper 400 -280 R90
SYMATTR InstName X3
SYMBOL res -400 312 R90
SYMATTR InstName R2
SYMATTR Value 25
SYMBOL res -336 344 R270
SYMATTR InstName RV3
SYMATTR Value 415