Version 4
SHEET 1 1780 760
WIRE 1408 -544 1408 -576
WIRE 1408 -544 768 -544
WIRE 768 -512 768 -544
WIRE 1408 -448 1408 -544
WIRE 768 -400 768 -432
WIRE 928 -400 768 -400
WIRE 1344 -400 928 -400
WIRE 768 -288 768 -400
WIRE 928 -288 928 -400
WIRE 704 -240 624 -240
WIRE 1056 -240 992 -240
WIRE 1088 -240 1056 -240
WIRE 1408 -240 1408 -352
WIRE 1408 -240 1168 -240
WIRE 1056 -192 1056 -240
WIRE 1408 -192 1408 -240
WIRE 768 -144 768 -192
WIRE 928 -48 928 -192
WIRE 928 -48 912 -48
WIRE 448 0 -240 0
WIRE 624 0 624 -240
WIRE 624 0 528 0
WIRE 928 0 928 -48
WIRE 1056 0 1056 -112
WIRE 1056 0 928 0
WIRE 1408 0 1408 -112
WIRE 1408 0 1056 0
WIRE 1568 0 1408 0
WIRE 1632 0 1568 0
WIRE 1760 0 1712 0
WIRE 928 48 928 0
WIRE 928 48 912 48
WIRE 1056 64 1056 0
WIRE 1408 80 1408 0
WIRE 768 192 768 160
WIRE 928 192 928 48
WIRE 624 240 624 0
WIRE 704 240 624 240
WIRE 1056 240 1056 144
WIRE 1056 240 992 240
WIRE 1088 240 1056 240
WIRE 1408 240 1408 160
WIRE 1408 240 1168 240
WIRE -544 272 -544 208
WIRE -432 272 -432 208
WIRE -240 272 -240 0
WIRE 1408 368 1408 240
WIRE -544 400 -544 352
WIRE -432 400 -432 352
WIRE -240 400 -240 352
WIRE 768 416 768 288
WIRE 928 416 928 288
WIRE 928 416 768 416
WIRE 1344 416 928 416
WIRE 768 480 768 416
WIRE 768 624 768 560
WIRE 1408 624 1408 464
WIRE 1408 624 768 624
WIRE 1408 656 1408 624
FLAG -240 400 0
FLAG 1408 -576 +V
FLAG -432 400 0
FLAG -432 208 -V
FLAG -544 400 0
FLAG -544 208 +V
FLAG 768 -144 -V
FLAG 768 160 +V
FLAG 1408 656 -V
FLAG 1568 0 OUT
FLAG 1760 0 0
SYMBOL npn 1344 -448 R0
SYMATTR InstName Q1
SYMATTR Value QBD135
SYMBOL voltage -240 256 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value SINE(0 15 20MEG 0 0 0)
SYMBOL res 1392 -208 R0
SYMATTR InstName R1
SYMATTR Value 1
SYMBOL voltage -432 256 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value -20
SYMBOL voltage -544 256 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 20
SYMBOL pnp 704 -192 M180
SYMATTR InstName Q3
SYMATTR Value QBD136
SYMBOL npn 992 -288 M0
SYMATTR InstName Q4
SYMATTR Value BC546B
SYMBOL res 1184 -256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 784 -416 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R5
SYMATTR Value 330
SYMBOL res 1392 64 R0
SYMATTR InstName R6
SYMATTR Value 1
SYMBOL pnp 992 288 R180
SYMATTR InstName Q7
SYMATTR Value BC556B
SYMBOL npn 704 192 R0
SYMATTR InstName Q8
SYMATTR Value QBD135
SYMBOL res 1184 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL res 784 576 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R9
SYMATTR Value 330
SYMBOL res 544 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 100
SYMBOL res 1728 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R12
SYMATTR Value 16
SYMBOL res 1040 -208 R0
SYMATTR InstName R15
SYMATTR Value 500
SYMBOL res 1040 48 R0
SYMATTR InstName R16
SYMATTR Value 500
SYMBOL diode 720 -64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMBOL diode 656 64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D3
SYMBOL pnp 1344 464 M180
SYMATTR InstName QBD136
SYMBOL diode 784 -64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMBOL diode 720 64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D4
SYMBOL diode 848 -64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D5
SYMBOL diode 784 64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D6
SYMBOL diode 912 -64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D7
SYMBOL diode 848 64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D8
TEXT -464 528 Left 2 !.LIB BD135.lib
TEXT -472 584 Left 2 !.tran 2µ
TEXT -472 624 Left 2 !;ac oct 20 1MEG 1g
TEXT -464 496 Left 2 !.LIB BIPOLAR.LB
TEXT -464 552 Left 2 !.LIB BD136.lib