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Varactor-555.sch-bak
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Timer:LM555xM U1
U 1 1 62069518
P 5250 3550
F 0 "U1" H 5250 4131 50 0000 C CNN
F 1 "LM555xM" H 5250 4040 50 0000 C CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 6100 3150 50 0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm555.pdf" H 6100 3150 50 0001 C CNN
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1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L Device:R_US R1
U 1 1 6206A990
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1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L Device:R_US R2
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F 0 "R2" H 6018 3696 50 0000 L CNN
F 1 "470k" H 6018 3605 50 0000 L CNN
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F 3 "~" H 5950 3650 50 0001 C CNN
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1 0 0 -1
$EndComp
Connection ~ 5950 3500
Wire Wire Line
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Wire Wire Line
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$Comp
L Device:C_Small C1
U 1 1 6206BD2B
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F 0 "C1" H 6042 4446 50 0000 L CNN
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F 2 "" H 5950 4400 50 0001 C CNN
F 3 "~" H 5950 4400 50 0001 C CNN
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1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR07
U 1 1 6206D446
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F 0 "#PWR07" H 5950 2250 50 0001 C CNN
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F 3 "" H 5950 2400 50 0001 C CNN
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1 0 0 -1
$EndComp
$Comp
L Device:LED D3
U 1 1 6206DB48
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$Comp
L Device:R_US R3
U 1 1 6206FBE9
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$EndComp
$Comp
L power:GND #PWR09
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$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L power:GND #PWR06
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Wire Wire Line
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L power:VCC #PWR05
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F 3 "" H 4600 2400 50 0001 C CNN
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$EndComp
Wire Wire Line
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L Device:R_POT_US RV1
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$Comp
L power:GND #PWR02
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F 2 "" H 4200 5050 50 0001 C CNN
F 3 "" H 4200 5050 50 0001 C CNN
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-1 0 0 -1
$EndComp
$Comp
L Device:D_Capacitance D2
U 1 1 6207A221
P 4500 4850
F 0 "D2" V 4400 4700 50 0000 C CNN
F 1 "i149" V 4500 4686 50 0000 C CNN
F 2 "" H 4500 4850 50 0001 C CNN
F 3 "~" H 4500 4850 50 0001 C CNN
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0 -1 1 0
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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L power:VCC #PWR01
U 1 1 6208264F
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F 0 "#PWR01" H 4200 2250 50 0001 C CNN
F 1 "VCC" H 4215 2573 50 0000 C CNN
F 2 "" H 4200 2400 50 0001 C CNN
F 3 "" H 4200 2400 50 0001 C CNN
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-1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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$Comp
L power:GND #PWR03
U 1 1 62099AB7
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F 2 "" H 4500 5050 50 0001 C CNN
F 3 "" H 4500 5050 50 0001 C CNN
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-1 0 0 -1
$EndComp
Text Notes 3650 5700 0 50 ~ 0
Doesn't work - at least, not because the varactors are doing anything\nhttps://www.instructables.com/Varactor-Controlled-555-Oscillator-and-Varactor-Di/
$Comp
L power:GND #PWR08
U 1 1 620BF07B
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F 0 "#PWR08" H 5950 4800 50 0001 C CNN
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$EndComp
Wire Wire Line
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Wire Wire Line
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Connection ~ 5950 4250
$Comp
L Device:D_Capacitance D1
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F 3 "~" H 4500 4450 50 0001 C CNN
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0 1 -1 0
$EndComp
Wire Wire Line
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Connection ~ 4500 4250
Wire Wire Line
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Connection ~ 4500 4650
$EndSCHEMATC