Version 4
SHEET 1 880 680
WIRE 48 -240 -48 -240
WIRE 80 -240 48 -240
WIRE 144 -240 80 -240
WIRE 288 -240 224 -240
WIRE 368 -240 288 -240
WIRE 288 -224 288 -240
WIRE -48 -208 -48 -240
WIRE 80 -176 80 -240
WIRE -48 -112 -48 -144
WIRE 288 -112 288 -144
WIRE 80 -32 80 -96
WIRE 80 -32 64 -32
WIRE 96 -32 80 -32
WIRE 176 -32 96 -32
WIRE 288 -32 240 -32
WIRE 352 -32 288 -32
WIRE 80 -16 80 -32
WIRE -160 48 -256 48
WIRE -48 48 -96 48
WIRE 16 48 -48 48
WIRE 32 48 16 48
WIRE -256 96 -256 48
WIRE 80 96 80 80
WIRE 96 96 80 96
WIRE 176 96 96 96
WIRE -48 112 -48 48
WIRE 80 112 80 96
WIRE 288 112 288 -32
WIRE 176 128 176 96
WIRE -256 224 -256 176
WIRE -48 224 -48 192
WIRE 80 224 80 192
WIRE 176 224 176 192
WIRE 288 224 288 192
FLAG 288 -112 0
FLAG 80 224 0
FLAG 368 -240 VB
FLAG -256 224 0
FLAG 176 224 0
FLAG -48 224 0
FLAG 288 224 0
FLAG -48 -112 0
FLAG 352 -32 out
FLAG -256 48 in
FLAG 96 -32 d
FLAG 16 48 g
FLAG 96 96 e
FLAG -48 -240 VB1
DATAFLAG 64 -32 "round($*1k)/1k"
DATAFLAG 176 96 "round($*1k)/1k"
DATAFLAG 48 -240 "round($*1k)/1k"
DATAFLAG 480 48 "round(Id(J1)*100k)/100k"
DATAFLAG 480 144 "round(V(d,e)*1k)/1k"
DATAFLAG 480 240 "round(V(d,e)*Id(J1)*1k)/1k"
DATAFLAG 288 -240 "round($*1k)/1k"
DATAFLAG -48 48 "round($*1k)/1k"
DATAFLAG 288 -32 "round($*1k)/1k"
SYMBOL njf 32 -16 R0
SYMATTR InstName J1
SYMATTR Value BF245C
SYMBOL voltage -256 80 R0
WINDOW 3 -14 194 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName VG
SYMATTR Value SINE(0 10m 1k)
SYMBOL Misc\\EuropeanResistor 64 96 R0
SYMATTR InstName R1
SYMATTR Value 330
SYMBOL polcap 160 128 R0
SYMATTR InstName C1
SYMATTR Value 100µ
SYMBOL Misc\\EuropeanResistor -64 96 R0
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL Misc\\EuropeanResistor 64 -192 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL cap -160 64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 1µ
SYMBOL polcap 176 -16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 2.2µ
SYMBOL Misc\\EuropeanResistor 272 96 R0
SYMATTR InstName RL
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 128 -224 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL polcap -64 -208 R0
SYMATTR InstName C4
SYMATTR Value 100µ
SYMBOL Misc\\battery 288 -240 R0
SYMATTR InstName V1
SYMATTR Value 15
TEXT -32 352 Left 2 !.lib BF245.lib
TEXT -272 352 Left 2 !.tran 0 50m 0 10u
TEXT -272 392 Left 2 !.options plotwinsize=0
TEXT 472 0 Left 2 ;Id
TEXT -272 432 Left 2 !.four 1k V(out)
TEXT 456 96 Left 2 ;Uds
TEXT 456 192 Left 2 ;Pjfet
TEXT 184 352 Left 2 ;Look THD and gain\nView -> SPICE Error Log
TEXT 184 424 Left 2 !.meas Vin RMS V(in)\n.meas Vout RMS V(out)\n.meas GAIN param Vout/Vin
RECTANGLE Normal 544 48 416 -16
RECTANGLE Normal 544 144 416 80
RECTANGLE Normal 544 240 416 176