Version 4
SHEET 1 1016 888
WIRE -160 -16 -192 -16
WIRE 192 -16 -160 -16
WIRE -192 0 -192 -16
WIRE 192 0 192 -16
WIRE -192 96 -192 80
WIRE -80 144 -192 144
WIRE 96 144 -16 144
WIRE 192 144 192 80
WIRE 192 144 96 144
WIRE 96 160 96 144
WIRE 192 176 192 144
WIRE 288 176 192 176
WIRE 192 208 192 176
WIRE -192 256 -192 144
WIRE -176 256 -192 256
WIRE -96 256 -112 256
WIRE -80 256 -96 256
WIRE 0 256 -16 256
WIRE 16 256 0 256
WIRE 96 256 96 240
WIRE 96 256 80 256
WIRE 112 256 96 256
WIRE 128 256 112 256
WIRE -192 336 -192 256
WIRE -96 336 -96 256
WIRE 0 336 0 256
WIRE 192 336 192 304
WIRE -192 432 -192 416
WIRE -96 432 -96 416
WIRE 0 432 0 416
WIRE 192 432 192 416
FLAG -192 96 0
FLAG 192 432 0
FLAG 288 176 OUT
FLAG 112 256 B
FLAG -192 432 0
FLAG -96 432 0
FLAG 0 432 0
FLAG -160 -16 VCC
DATAFLAG 144 144 "round($*1e6)/1e6"
DATAFLAG 128 -16 "round($*1e3)/1e3"
SYMBOL voltage -192 -16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PWL(0 0 30m {VCC})
SYMBOL res -208 320 R0
SYMATTR InstName R4
SYMATTR Value {R}
SYMBOL npn 128 208 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL res 80 144 R0
SYMATTR InstName R3
SYMATTR Value 560k
SYMBOL cap -80 160 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value {C}
SYMBOL cap -80 272 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value {C}
SYMBOL res 176 -16 R0
SYMATTR InstName R1
SYMATTR Value 4k7
SYMBOL cap -176 272 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value {C}
SYMBOL res -112 320 R0
SYMATTR InstName R2
SYMATTR Value {R}
SYMBOL res -16 320 R0
SYMATTR InstName R5
SYMATTR Value {R}
SYMBOL cap 16 272 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C4
SYMATTR Value {C/2}
SYMBOL res 176 320 R0
SYMATTR InstName R6
SYMATTR Value 22
TEXT -176 488 Left 2 !.tran 0 500m 0 10u
TEXT -176 520 Left 2 !.param R=33k\n.param C=5n6\n.param VCC 2
TEXT -176 464 Left 2 !.op
TEXT 112 488 Left 2 !.option plotwinsize=0\n+ nomarch
TEXT -376 -312 Left 5 ;Example of 1 Transistor Phase Shift Oscillator
TEXT -280 -248 Left 4 ;- nom. 1kHz\n- runs from 2V, 220uA\n- Tony Casey, tony@ritecom.com\n- last updated 20200204
RECTANGLE Normal 816 -80 -384 -352