Version 4
SHEET 1 880 680
WIRE 0 80 -48 80
WIRE 112 80 80 80
WIRE 192 80 176 80
WIRE 240 80 192 80
WIRE -48 208 -48 80
WIRE 192 224 192 80
WIRE -48 416 -48 288
WIRE 192 416 192 304
WIRE 192 416 -48 416
WIRE 240 416 192 416
WIRE 192 464 192 416
FLAG 192 464 0
SYMBOL res 208 320 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 270
SYMBOL diode 112 96 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N914
SYMBOL voltage -16 80 R270
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL voltage -48 192 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value SINE(0 8 50)
TEXT -80 488 Left 2 !.tran 0.2