Version 4 SHEET 1 4464 2396 WIRE 816 -528 544 -528 WIRE 976 -528 816 -528 WIRE 1216 -528 976 -528 WIRE 1440 -528 1216 -528 WIRE 1920 -528 1440 -528 WIRE 2128 -528 1920 -528 WIRE 2176 -528 2128 -528 WIRE 2304 -528 2256 -528 WIRE 2544 -528 2384 -528 WIRE 2656 -528 2544 -528 WIRE 2816 -528 2656 -528 WIRE 544 -480 544 -528 WIRE 1920 -480 1920 -528 WIRE 2656 -480 2656 -528 WIRE 2816 -480 2816 -528 WIRE 976 -432 976 -528 WIRE 1440 -432 1440 -528 WIRE 816 -416 816 -528 WIRE 1216 -416 1216 -528 WIRE 1920 -368 1920 -416 WIRE 2656 -368 2656 -416 WIRE 2816 -368 2816 -400 WIRE 544 -272 544 -400 WIRE 1440 -272 1440 -352 WIRE 816 -224 816 -352 WIRE 816 -224 608 -224 WIRE 976 -224 976 -352 WIRE 976 -224 816 -224 WIRE 1056 -224 976 -224 WIRE 1216 -224 1216 -352 WIRE 1216 -224 1136 -224 WIRE 1376 -224 1216 -224 WIRE 976 -192 976 -224 WIRE 2432 -176 1920 -176 WIRE 2544 -176 2544 -528 WIRE 2544 -176 2432 -176 WIRE 544 -128 544 -176 WIRE 1920 -112 1920 -176 WIRE 1440 -96 1440 -176 WIRE 1488 -96 1440 -96 WIRE 976 -80 976 -112 WIRE 2432 -80 2432 -176 WIRE 2128 -48 2128 -528 WIRE 224 -32 224 -80 WIRE 2544 -32 2544 -176 WIRE 544 0 544 -64 WIRE 544 0 416 0 WIRE 672 0 544 0 WIRE 1440 0 1440 -96 WIRE 1616 0 1440 0 WIRE 1744 0 1616 0 WIRE 1920 0 1920 -48 WIRE 1920 0 1744 0 WIRE 2064 0 1920 0 WIRE 1440 32 1440 0 WIRE 416 48 416 0 WIRE 672 48 672 0 WIRE 2304 48 2128 48 WIRE 2432 48 2432 -16 WIRE 2432 48 2384 48 WIRE 2496 48 2432 48 WIRE 1920 64 1920 0 WIRE 224 112 224 48 WIRE 2128 128 2128 48 WIRE 416 176 416 128 WIRE 416 176 400 176 WIRE 512 176 416 176 WIRE 672 176 672 128 WIRE 672 176 576 176 WIRE 688 176 672 176 WIRE 976 176 960 176 WIRE 1072 176 976 176 WIRE 1392 176 1136 176 WIRE 416 224 416 176 WIRE 672 224 672 176 WIRE 224 272 224 192 WIRE 304 272 224 272 WIRE 352 272 304 272 WIRE 832 272 736 272 WIRE 976 272 976 176 WIRE 976 272 832 272 WIRE 1072 272 976 272 WIRE 1392 272 1392 176 WIRE 1392 272 1152 272 WIRE 1920 272 1920 160 WIRE 1920 272 1392 272 WIRE 2544 272 2544 64 WIRE 2544 272 1920 272 WIRE 2784 272 2544 272 WIRE 224 320 224 272 WIRE 304 320 304 272 WIRE 976 320 976 272 WIRE 1440 320 1440 112 WIRE 1744 320 1744 0 WIRE 832 336 832 272 WIRE 2544 416 2544 272 WIRE 2576 416 2544 416 WIRE 2672 416 2656 416 WIRE 2816 416 2752 416 WIRE 976 432 976 400 WIRE 1072 432 976 432 WIRE 1216 432 1152 432 WIRE 1296 432 1216 432 WIRE 2128 432 2128 208 WIRE 2128 432 1360 432 WIRE 2304 432 2128 432 WIRE 832 448 832 400 WIRE 976 448 976 432 WIRE 976 448 832 448 WIRE 224 464 224 400 WIRE 304 464 304 384 WIRE 2128 496 2128 432 WIRE 1616 512 1616 0 WIRE 1920 512 1920 272 WIRE 816 544 816 528 WIRE 1440 560 1440 400 WIRE 1552 560 1440 560 WIRE 1440 608 1440 560 WIRE 976 656 976 448 WIRE 2544 656 2544 416 WIRE 2128 672 2128 576 WIRE 2320 672 2128 672 WIRE 2432 672 2400 672 WIRE 2496 672 2432 672 WIRE 1216 720 1216 432 WIRE 1440 720 1440 688 WIRE 1616 720 1616 608 WIRE 1616 720 1440 720 WIRE 1744 720 1744 384 WIRE 1744 720 1616 720 WIRE 1920 720 1920 608 WIRE 1920 720 1744 720 WIRE 2064 720 1920 720 WIRE 2432 736 2432 672 WIRE 1920 768 1920 720 WIRE 416 784 416 320 WIRE 1440 800 1440 720 WIRE 416 848 416 784 WIRE 448 848 416 848 WIRE 576 848 512 848 WIRE 672 848 672 320 WIRE 672 848 656 848 WIRE 816 848 816 624 WIRE 960 848 816 848 WIRE 1376 848 960 848 WIRE 1920 896 1920 832 WIRE 2432 896 2432 800 WIRE 2432 896 1920 896 WIRE 2544 896 2544 752 WIRE 2544 896 2432 896 WIRE 1440 928 1440 896 WIRE 416 976 416 848 WIRE 416 976 384 976 WIRE 1216 976 1216 784 WIRE 1216 976 416 976 WIRE 1376 976 1216 976 WIRE 416 1008 416 976 WIRE 416 1008 240 1008 WIRE 432 1008 416 1008 WIRE 1376 1008 1376 976 WIRE 1392 1008 1376 1008 WIRE 416 1040 416 1008 WIRE 240 1072 240 1008 WIRE 528 1088 480 1088 WIRE 560 1088 528 1088 WIRE 672 1088 672 848 WIRE 672 1088 560 1088 WIRE 1440 1104 1440 1024 WIRE 1584 1104 1440 1104 WIRE 672 1152 672 1088 WIRE 960 1152 960 848 WIRE 816 1168 816 848 WIRE 560 1200 560 1088 WIRE 608 1200 560 1200 WIRE 240 1232 240 1136 WIRE 416 1232 416 1136 WIRE 416 1232 240 1232 WIRE 1440 1248 1440 1104 WIRE 1584 1248 1584 1104 WIRE 560 1264 560 1200 WIRE 416 1328 416 1232 WIRE 672 1328 672 1248 WIRE 1936 1376 1936 1344 WIRE 2624 1376 2624 1344 WIRE 2720 1376 2720 1344 WIRE 416 1504 416 1408 WIRE 416 1504 112 1504 WIRE 560 1504 560 1328 WIRE 560 1504 416 1504 WIRE 672 1504 672 1408 WIRE 672 1504 560 1504 WIRE 816 1504 816 1232 WIRE 816 1504 672 1504 WIRE 960 1504 960 1232 WIRE 960 1504 816 1504 WIRE 1440 1504 1440 1328 WIRE 1440 1504 960 1504 WIRE 1584 1504 1584 1328 WIRE 1584 1504 1440 1504 WIRE 1936 1504 1936 1440 WIRE 1936 1504 1584 1504 WIRE 2128 1504 2128 768 WIRE 2128 1504 1936 1504 WIRE 2192 1504 2128 1504 WIRE 2304 1504 2272 1504 WIRE 2544 1504 2544 896 WIRE 2544 1504 2384 1504 WIRE 2624 1504 2624 1440 WIRE 2624 1504 2544 1504 WIRE 2720 1504 2720 1456 WIRE 2720 1504 2624 1504 FLAG 2784 272 vout IOPIN 2784 272 Out FLAG 2656 -368 0 FLAG 2624 1344 0 FLAG 976 656 0 FLAG 304 464 0 FLAG 224 464 0 FLAG 976 -80 0 FLAG 224 -80 0 FLAG 2816 416 0 FLAG 224 272 Q8-base IOPIN 224 272 In FLAG 960 176 Q10-base IOPIN 960 176 In FLAG 816 528 0 FLAG 1488 -96 VASout IOPIN 1488 -96 Out FLAG 2304 432 Gate IOPIN 2304 432 Out FLAG 1936 1344 0 FLAG 1920 -368 0 FLAG 2816 -368 0 FLAG 2720 1344 0 FLAG 416 784 Q21.C FLAG 528 1088 Q21.B FLAG 384 976 VASin IOPIN 384 976 In FLAG 112 1504 AUXneg IOPIN 112 1504 BiDir FLAG 400 176 Q8-emi IOPIN 400 176 In FLAG 688 176 Q10-emi IOPIN 688 176 In SYMBOL res 1424 -448 R0 SYMATTR InstName R14 SYMATTR Value 220R SYMBOL voltage 2720 1360 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 WINDOW 3 5 -53 Right 2 SYMATTR Value {Vsupply} SYMATTR InstName V6 SYMBOL res 1424 16 R0 SYMATTR InstName R19 SYMATTR Value {Rbias} SYMBOL nmos 2496 -32 R0 WINDOW 3 -67 122 Left 2 SYMATTR Value 2SK134C SYMATTR InstName M5 SYMBOL pmos 2496 752 M180 WINDOW 3 -48 111 Left 2 SYMATTR Value 2SJ49C SYMATTR InstName M7 SYMBOL res 2400 32 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R59 SYMATTR Value 330R SYMBOL res 2416 656 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R62 SYMATTR Value 220R SYMBOL polcap 2640 -480 R0 SYMATTR InstName C21 SYMATTR Value 220µ SYMBOL polcap 2608 1376 R0 SYMATTR InstName C24 SYMATTR Value 220µ SYMBOL res 240 208 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R18 SYMATTR Value 330R SYMBOL cap 288 320 R0 SYMATTR InstName C29 SYMATTR Value {Cx4} SYMBOL res 1424 1232 R0 WINDOW 3 48 76 Left 2 SYMATTR Value 150 SYMATTR InstName R52 SYMBOL res 800 528 R0 SYMATTR InstName R5 SYMATTR Value 22k SYMBOL res 1168 256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 10k SYMBOL cap 1296 448 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C3 SYMATTR Value {Cx2} SYMBOL res 960 304 R0 SYMATTR InstName R11 SYMATTR Value 330R SYMBOL res 240 416 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R2 SYMATTR Value 10k SYMBOL res 960 -208 R0 SYMATTR InstName R6 SYMATTR Value 22k SYMBOL res 2768 400 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 10 SYMBOL cap 800 -416 R0 WINDOW 0 31 -4 Left 2 WINDOW 3 29 65 Left 2 SYMATTR InstName C6 SYMATTR Value {Cbloc} SYMBOL cap 800 1168 R0 SYMATTR InstName C8 SYMATTR Value {Cbloc} SYMBOL cap 1728 320 R0 SYMATTR InstName C1 SYMATTR Value {Cbloc} SYMBOL res 1056 448 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R9 SYMATTR Value {Rx1} SYMBOL res 1424 592 R0 SYMATTR InstName R13 SYMATTR Value 1k0 SYMBOL npn 1552 512 R0 WINDOW 3 70 66 Left 2 SYMATTR Value BC550C SYMATTR InstName Q5 SYMBOL res 2112 480 R0 SYMATTR InstName R16 SYMATTR Value 100 SYMBOL npn 2064 -48 R0 WINDOW 3 70 66 Left 2 SYMATTR Value 2N5551C SYMATTR InstName Q14 SYMBOL pnp 2064 768 M180 WINDOW 0 -53 81 Left 2 WINDOW 3 -68 -12 Left 2 SYMATTR InstName Q15 SYMATTR Value 2N5401C SYMBOL res 656 32 R0 SYMATTR InstName R24 SYMATTR Value 100 SYMBOL res 400 32 R0 SYMATTR InstName R25 SYMATTR Value 100 SYMBOL npn 480 1040 M0 WINDOW 3 -281 179 Left 2 SYMATTR Value BC550C SYMATTR InstName Q21 SYMBOL cap 1232 784 R180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C10 SYMATTR Value {Cx1} SYMBOL res 528 -496 R0 SYMATTR InstName R20 SYMATTR Value {Rltp} SYMBOL res 400 1312 R0 SYMATTR InstName R23 SYMATTR Value {Rltp} SYMBOL res 656 1312 R0 SYMATTR InstName R26 SYMATTR Value {Rltp} SYMBOL res 2112 112 R0 SYMATTR InstName R33 SYMATTR Value 100 SYMBOL cap 1136 160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C13 SYMATTR Value {Cfba} SYMBOL cap 512 832 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C16 SYMATTR Value {Cx3} SYMBOL res 672 832 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R30 SYMATTR Value {Rx2} SYMBOL npn 608 1152 R0 WINDOW 3 -299 -18 Left 2 SYMATTR Value BC550C SYMATTR InstName Q1 SYMBOL voltage 224 64 R180 WINDOW 123 -71 9 VRight 2 WINDOW 39 0 0 Left 2 WINDOW 0 39 47 Left 2 WINDOW 3 -34 -262 VRight 2 SYMATTR Value2 AC {Vsignal} SYMATTR InstName V1 SYMATTR Value SINE(0 {Vsignal} {Freq}) SYMBOL npn 1376 800 R0 WINDOW 3 70 66 Left 2 SYMATTR Value 2N5551C SYMATTR InstName Q7 SYMBOL res 1152 -240 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 2k2 SYMBOL cap 1232 -352 R180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C2 SYMATTR Value {Cbloc} SYMBOL pnp 1984 160 R180 WINDOW 3 78 -10 Left 2 SYMATTR Value BC560C SYMATTR InstName Q3 SYMBOL npn 1984 512 M0 WINDOW 3 -138 -6 Left 2 SYMATTR Value BC550C SYMATTR InstName Q6 SYMBOL voltage 976 -448 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 44 Left 2 SYMATTR SpiceLine Rser=1 SYMATTR InstName V4 SYMATTR Value 3.7 SYMBOL voltage 960 1136 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 124 Left 2 SYMATTR SpiceLine Rser=1 SYMATTR InstName V5 SYMATTR Value 3.7 SYMBOL voltage 2816 -496 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 WINDOW 3 60 -19 Right 2 SYMATTR Value {Vsupply} SYMATTR InstName V3 SYMBOL LED 528 -128 R0 SYMATTR InstName D1 SYMATTR Value NSCW100 SYMATTR Description Diode SYMATTR Type diode SYMBOL res 1424 304 R0 SYMATTR InstName R3 SYMATTR Value 1k5 SYMBOL polcap 1920 1376 R0 SYMATTR InstName C7 SYMATTR Value 220µ SYMBOL polcap 1904 -480 R0 SYMATTR InstName C9 SYMATTR Value 220µ SYMBOL pnp 1376 -176 M180 SYMATTR InstName Q2 SYMATTR Value 2N5401C SYMBOL pnp 352 320 M180 SYMATTR InstName Q8 SYMATTR Value 2N5401C SYMBOL pnp 608 -176 R180 SYMATTR InstName Q9 SYMATTR Value 2N5401C SYMBOL pnp 736 320 R180 SYMATTR InstName Q10 SYMATTR Value 2N5401C SYMBOL ind 2672 400 R90 WINDOW 0 5 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName L1 SYMATTR Value 100n SYMBOL voltage 2288 -528 R270 WINDOW 123 0 0 Left 2 WINDOW 39 24 44 Left 2 SYMATTR SpiceLine Rser=1 SYMATTR InstName V2 SYMATTR Value 8.5 SYMBOL voltage 2400 1504 R90 WINDOW 123 0 0 Left 2 WINDOW 39 24 44 Left 2 SYMATTR SpiceLine Rser=1 SYMATTR InstName V7 SYMATTR Value 8.5 SYMBOL diode 1936 -48 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D3 SYMATTR Value 1N914 SYMBOL diode 1936 832 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D4 SYMATTR Value 1N914 SYMBOL cap 576 160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C12 SYMATTR Value {Cee} SYMBOL res 2272 -544 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R15 SYMATTR Value 1m SYMBOL res 2288 1488 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R17 SYMATTR Value 1m SYMBOL res 1568 1232 R0 SYMATTR InstName R21 SYMATTR Value 1k5 SYMBOL cap 2416 736 R0 SYMATTR InstName C4 SYMATTR Value 100p SYMBOL cap 2416 -80 R0 SYMATTR InstName C11 SYMATTR Value 100p SYMBOL nmos 1392 928 R0 SYMATTR InstName M1 SYMATTR Value 2N7002 SYMBOL zener 256 1136 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMATTR Value 1N750 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 848 400 R180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C14 SYMATTR Value {Cfbb} SYMBOL cap 544 1264 R0 SYMATTR InstName C17 SYMATTR Value {Cx5} TEXT 2504 -560 Left 4 ;100mA TEXT 1392 -560 Left 4 ;13mA TEXT 464 -568 Left 4 ;2x1.4mA TEXT 496 -656 Left 5 ;LTP TEXT 1384 -640 Left 5 ;VAS TEXT 2040 -640 Left 5 ;Buffer TEXT 2448 -640 Left 5 ;LatFETs TEXT 944 1672 Left 6 ;THD20kHz Lateral FET Voltage Feedback Amplifier 2019-09-27 TEXT -504 1536 Left 4 ;features:\n-Voltage Feedback Amplifier\n-2-pole miller compensation for extended phase boost & loop gain\n-miller cap tied to Vgate to minimize VAS loading\n-compensated feedback divider\n-LTP loading active current mirror increases loop gain\n-anti saturation clamping improves recovery from clipping TEXT 2600 -328 Left 2 !#setup 2019-11-06\n.param Vsignal 0.7\n.param Freq=20k\n.param Vsupply 36\n.option noopiter\n.options plotwinsize=0\n.options method=gear\n.param FFT=2**16\n.four {Freq} 10 V(Vout)\n.four {Freq} 10 V(Gate)\n.MEAS Output RMS V(Vout)\n.MEAS GateDrive RMS V(Gate)\n.MEAS TRAN Base8Base10 PP V(Q8-base,Q10-base)\n.MEAS TRAN Emi8BEmi10 PP V(Q8-emi,Q10-emi) \n.MEAS TRAN VasDrive PP V(VASin,AUXneg)\n.tran 0 10m 1m 0.1u startup uic\n.option numdgt=15\n.option reltol=1e-6\n.option ptrantau=0 TEXT 112 -936 Left 1 !* BC550C - created March 1, 2011 copyright Cordell Audio\n.MODEL BC550C npn IS=45e-15 BF=689 VAF=162 IKF=0.09 ISE=4600e-15 NE=2 NF=0.9965 RB=167 RC=1 RE=0.04 CJE=18.7e-12 MJE=0.35 VJE=0.75 CJC=6.2e-12 MJC=0.25 VJC=0.4 FC=0.5 TF=595e-12 XTF=10 VTF=10 ITF=1 TR=10e-9 BR=12.2 IKR=0.34 EG=1.2 XTB=1.65 XTI=3 NC=0.996 NR=1.0 VAR=120 IRB=7e-5 RBM=1.1 XCJC=0.6 ISC=5e-15 mfg=CA030111\n* BC560C - created March 2, 2011 copyright Cordell Audio\n.MODEL BC560C pnp IS=60e-15 BF=900 VAF=160 IKF=0.10 ISE=70e-15 NE=1.42 NF=1 RB=170 RC=1.0 RE=0.05 CJE=19e-12 MJE=0.3 VJE=0.75 CJC=3.9e-12 MJC=0.3 VJC=0.75 FC=0.5 TF=600e-12 XTF=7 VTF=4 ITF=0.45 TR=10e-9 BR=3 IKR=0 EG=1.1 XTB=1.5 XTI=3 NC=2 ISC=0 mfg=CA030211\n* 2N5401C - created March 10, 2011 copyright Cordell Audio\n.MODEL 2N5401C pnp IS=25e-15 BF=220 VAF=196 IKF=0.2 ISE=2e-15 NE=1.4 NF=1 RB=60 RC=2 RE=0.1 CJE=35e-12 MJE=0.40 VJE=0.75 CJC=15e-12 MJC=0.55 VJC=0.75 FC=0.5 TF=800e-12 XTF=60 VTF=0 ITF=4 TR=1.5e-9 BR=4 IKR=0 EG=1.1 XTB=1.5 XTI=3 NC=2 ISC=0 mfg=CA031011\n* 2N5551C - created March 10, 2011 copyright Cordell Audio\n.MODEL 2N5551C npn IS=9e-15 BF=125 VAF=667 IKF=0.09 ISE=1e-15 NE=1.3 NF=1 RB=92 RC=1 RE=0.1 CJE=45e-12 MJE=0.35 VJE=0.75 CJC=4.9e-12 MJC=0.30 VJC=0.75 FC=0.5 TF=565e-12 XTF=300 VTF=5 ITF=2.0 TR=1.2e-9 BR=3 IKR=0 EG=1.1 XTB=1.5 XTI=3 NC=2 ISC=0 mfg=CA031011\n* 2SA1381C - created March 11, 2011 copyright Cordell Audio\n.MODEL 2SA1381C pnp IS=50e-15 BF=160 VAF=328 IKF=0.5 ISE=10e-15 NE=1.5 NF=1 RB=17 RC=4.1 RE=0.05 CJE=71e-12 MJE=0.35 VJE=0.75 CJC=8e-12 MJC=0.35 VJC=0.55 FC=0.5 TF=900e-12 XTF=10000 VTF=35 ITF=20 TR=1e-9 BR=1.6 IKR=0.09 EG=0.6 XTB=0.9 XTI=3 NC=2 ISC=3.2e-10 VAR=100 mfg=CA031111\n* 2SC3503C - created March 11, 2011 copyright Cordell Audio\n.MODEL 2SC3503C npn IS=40e-15 BF=170 VAF=769 IKF=0.08 ISE=200e-15 NE=1.5 NF=1.0 RB=75 RC=1.5 RE=0.1 CJE=95e-12 MJE=0.35 VJE=0.75 CJC=7e-12 MJC=0.35 VJC=0.75 FC=0.5 TF=585e-12 XTF=10000 VTF=35 ITF=20 TR=10e-9 BR=0.6 IKR=0.05 EG=0.75 XTB=1.5 XTI=3 NC=1.5 ISC=7e-15 NR=1.0 VAR=100 IRB=3e-6 RBM=0.035 XCJC=1.0 mfg=CA031111 TEXT 128 -1072 Left 1 !* 2SJ49C VDMOS copyright Cordell Audio December 6, 2010\n.model 2SJ49C VDMOS(pchan Vto=-0.08 Kp=0.6 Lambda=0.1 Rs=0.55 Rd=0.1 Rds=1e7 Cgdmax=215p Cgdmin=10p a=0.25 Cgs=900p Cjo=1200p m=0.7 VJ=2.5 IS=4.0E-06 N=2.4)\n* 2SK134C VDMOS copyright Cordell Audio December 6, 2010\n.model 2SK134C VDMOS(nchan Vto=0.02 Kp=0.85 Lambda=0.02 Rs=0.62 Rd=0.1 Rds=1e7 Cgdmax=100p Cgdmin=5p a=0.25 Cgs=600p Cjo=1080p m=0.7 VJ=2.5 IS=4.0E-06 N=2.4) TEXT -384 -1088 Left 1 !* TL431 Current Regulator\n.subckt TL431 CATHODE ANODE REF\nQ1 N004 N003 N001 0 P\nQ2 ANODE N002 N001 0 P\nQ3 CATHODE N005 ANODE 0 N\nR1 N002 ANODE 600k\nR2 REF N002 648k\nI1 CATHODE N001 5µ\nV1 N003 ANODE 1.2V\nQ4 CATHODE N004 N005 0 N\nR6 N004 ANODE 640k\n.model N NPN(BF=250 Cje=.5p Cjc=.5p Rb=500)\n.model P PNP(BF=120 Cje=.3p Cjc=1.5p Rb=250)\n.ends TL431 TEXT 840 -480 Left 2 ;to be replaced by TL431, 10k & 4k7 TEXT 1000 1192 Left 2 ;to be replaced by TL431, 10k & 4k7 TEXT 1720 1016 Left 2 !;ac oct 100 100 100meg TEXT 144 544 Left 2 !#2019-09-20\n.param Cfba 47p\n.param Cfbb 1n0\n.param Cee 330p \n.param Rx1 3k3 \n.param Rltp 1k0\n.param Rx2 10k \n.param Cx1 22p\n.param Cx2 100p\n.param Cx3 1n \n.param Cx4 100p \n.param Cx5 100p\n.param Rbias 780\n.param Cbloc 100n TEXT -304 544 Left 2 ;OLG 95/76,5/37.7dB @1/10/100kHz\nPhase Margin 52.5degree @3.2MHz TEXT 2160 -232 Left 2 !#.step param x list 220 330 470