Version 4 SHEET 1 1180 680 WIRE -16 -176 -160 -176 WIRE 48 -176 -16 -176 WIRE 160 -176 48 -176 WIRE 224 -176 160 -176 WIRE 336 -176 224 -176 WIRE 336 -144 336 -176 WIRE 224 -128 224 -176 WIRE -160 -112 -160 -176 WIRE 160 -112 160 -176 WIRE 48 -64 48 -176 WIRE 336 -32 336 -64 WIRE 400 -32 336 -32 WIRE 448 -32 400 -32 WIRE 560 -32 512 -32 WIRE 624 -32 560 -32 WIRE 656 -32 624 -32 WIRE 336 -16 336 -32 WIRE 160 48 160 -48 WIRE 192 48 160 48 WIRE 224 48 224 -48 WIRE 224 48 192 48 WIRE 624 48 624 -32 WIRE 224 64 224 48 WIRE 336 64 224 64 WIRE 224 144 224 64 WIRE 624 176 624 128 WIRE -112 192 -144 192 WIRE 48 192 48 16 WIRE 48 192 -48 192 WIRE 112 192 48 192 WIRE 160 192 112 192 WIRE -144 240 -144 192 WIRE 224 272 224 240 WIRE 256 272 224 272 WIRE 288 272 256 272 WIRE 560 272 560 -32 WIRE 560 272 352 272 WIRE 48 304 48 192 WIRE 224 304 224 272 WIRE 48 448 48 384 WIRE 224 448 224 384 FLAG 224 448 0 FLAG 48 448 0 FLAG 624 176 0 FLAG -144 240 0 FLAG -160 -32 0 FLAG 256 272 e FLAG 112 192 b FLAG 192 48 c FLAG 400 -32 1 FLAG -16 -176 vcc FLAG 656 -32 out IOPIN 656 -32 Out SYMBOL npn 160 144 R0 SYMATTR InstName Q1 SYMATTR Value qNPN SYMBOL res 208 -144 R0 SYMATTR InstName Rc SYMATTR Value 5k SYMBOL res 32 -80 R0 SYMATTR InstName Rb1 SYMATTR Value 6k SYMBOL res 32 288 R0 SYMATTR InstName Rb2 SYMATTR Value 4k SYMBOL res 208 288 R0 SYMATTR InstName Re SYMATTR Value 33k SYMBOL res 608 32 R0 SYMATTR InstName Ro SYMATTR Value 1k SYMBOL cap -48 176 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Cb SYMATTR Value 1nF SYMBOL cap 512 -48 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Ccc SYMATTR Value 1nF SYMBOL cap 176 -48 R180 WINDOW 0 24 56 Left 2 WINDOW 3 29 84 Left 2 SYMATTR InstName Cc SYMATTR Value 50pF SYMBOL ind 320 -160 R0 SYMATTR InstName Lc2 SYMATTR Value 0.5µH SYMBOL ind 320 -32 R0 SYMATTR InstName Lc1 SYMATTR Value 4.5µF SYMBOL cap 352 256 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName Ce SYMATTR Value 1nF SYMBOL voltage -160 -128 R0 WINDOW 3 -73 321 VLeft 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName Vcc SYMATTR Value PULSE(0 10 1n 1n 1n 100 1000 1) TEXT 864 200 Left 2 !.model qnpn npn TEXT 872 240 Left 2 !.tran .1n 20u 0 .1n