Version 4
SHEET 1 880 680
WIRE -64 -96 -160 -96
WIRE -32 -96 -64 -96
WIRE 64 -96 48 -96
WIRE -160 -64 -160 -96
WIRE 64 -48 64 -96
WIRE -160 48 -160 16
WIRE 64 48 64 16
WIRE -64 144 -64 -96
WIRE -32 144 -64 144
WIRE 64 144 48 144
WIRE 64 192 64 144
WIRE 64 288 64 256
FLAG 64 48 0
FLAG -160 48 0
FLAG 64 -96 Vf1
FLAG 64 288 0
FLAG 64 144 Vf2
SYMBOL res 64 -112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL voltage -160 -80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL diode 48 -48 R0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL res 64 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1K
SYMBOL diode 48 192 R0
SYMATTR InstName D2
SYMATTR Value 1N4148 temp=20
TEXT -322 -120 Left 2 !.dc temp -40 210 100