Version 4.1
SHEET 1 880 680
WIRE -208 -64 -208 -96
WIRE -208 -64 -256 -64
WIRE 32 -64 -208 -64
WIRE 112 -64 32 -64
WIRE 112 48 112 -64
WIRE 112 48 -160 48
WIRE -208 80 -208 16
WIRE -144 80 -208 80
WIRE 112 112 112 48
WIRE -624 128 -624 112
WIRE -624 128 -704 128
WIRE -160 128 -160 48
WIRE 32 128 32 16
WIRE 80 128 32 128
WIRE -704 144 -704 128
WIRE -624 144 -624 128
WIRE -352 144 -384 144
WIRE -208 144 -208 80
WIRE -208 144 -272 144
WIRE -192 144 -208 144
WIRE 192 144 144 144
WIRE -80 160 -80 80
WIRE -80 160 -128 160
WIRE -64 160 -80 160
WIRE 32 160 16 160
WIRE 80 160 32 160
WIRE -384 176 -384 144
WIRE -384 176 -432 176
WIRE -192 176 -208 176
WIRE 112 192 112 176
WIRE -160 208 -160 192
WIRE -384 224 -384 176
WIRE -352 224 -384 224
WIRE -256 224 -256 16
WIRE -256 224 -272 224
WIRE -208 224 -208 176
WIRE -208 224 -256 224
WIRE -704 240 -704 208
WIRE -624 240 -624 224
WIRE -624 240 -704 240
WIRE -624 256 -624 240
WIRE -208 256 -208 224
WIRE 32 256 32 160
WIRE 80 256 32 256
WIRE 192 256 192 144
WIRE 192 256 160 256
WIRE -64 304 -144 304
WIRE 192 304 192 256
WIRE 192 304 16 304
WIRE -432 368 -432 256
WIRE -208 368 -208 352
WIRE -208 368 -432 368
WIRE -208 400 -208 368
FLAG -624 256 0
FLAG -624 112 V+
FLAG -208 400 0
FLAG -160 208 0
FLAG 112 192 0
FLAG -208 -96 V+
SYMBOL LM3900 -160 96 R0
WINDOW 0 -17 63 Left 1
WINDOW 3 8 96 Left 2
SYMATTR InstName U1
SYMBOL voltage -624 128 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=1
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL res -256 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 10k
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL polcap -720 144 R0
WINDOW 3 24 56 Left 2
SYMATTR Value 10µ
SYMATTR InstName C2
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=10 Irms=75m Rser=0.4818 Lser=4.287n mfg="Würth Elektronik" pn="865090245005 WCAP-ASLU 6,3x7,7" type="Al electrolytic"
SYMBOL LM3900 112 80 R0
WINDOW 3 7 97 Left 2
SYMATTR InstName U2
SYMBOL res 32 144 R90
WINDOW 0 72 60 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 47k
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL cap -80 64 R90
WINDOW 0 11 49 VBottom 2
WINDOW 3 33 30 VTop 2
SYMATTR InstName C4
SYMATTR Value 2.7n
SYMBOL res -256 208 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 3.3k
SYMBOL res -224 -80 R0
SYMATTR InstName R3
SYMATTR Value 470k
SYMBOL res -240 -80 M0
SYMATTR InstName R4
SYMATTR Value 470k
SYMBOL res 176 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 1.5Meg
SYMBOL res 32 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 15k
SYMBOL voltage -432 160 R0
WINDOW 123 0 0 Left 0
WINDOW 39 4 98 Left 2
WINDOW 0 -39 6 Left 2
WINDOW 3 -37 100 Left 2
SYMATTR SpiceLine Rser=1
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL res 16 -80 R0
SYMATTR InstName R7
SYMATTR Value 68k
SYMBOL npn3 -144 256 M0
SYMATTR InstName Q4
SYMATTR Value BC548A
TEXT -800 328 Left 2 !.tran 10m uic
TEXT -800 376 Left 2 !.options numdgt=10\n.options plotwinsize=0
TEXT -800 296 Left 2 !.include Philips_EE.txt
TEXT -792 32 Left 2 ;Note 1: in this simulation, Vcc=V1=V+ equals 5V, not 9V\nV2 can be varied between 0.8 and 5V for proper oscillation
TEXT -544 392 Left 2 ;V2 can be implemented in practice \nusing a 47k potmeter connected to\nVcc and to GND (via a 2K2 resistor)
TEXT -128 392 Left 2 ;Note 2: Diode on yellow LM3900 board\nneeds to be shorted, otherwise\nno oscillation ...!