Guitar Pedal Schematic Request

Updated properties for 1 object

0:16

Set R10's Part Type to "Fixed Resistor"

Set R10's Resistor Type to "Chip SMD"

Set R10's Package or Case Code to "R_0603_1608Metric"

Set R10's Manufacturer Part Number to "GENERIC-RES-0603"

Set R10's Mount to "Surface Mount"

88 days

Added LP2950-50 pinout guidance

1:55

Started: Add a project property containing the LP2950-50 pinout note and recommended capacitor placement guidance.

88 days

Updated 14 document properties

0:20

Set Part Type to "Linear Regulator"

Set Manufacturer Part Number to "LP2950-50LPRE3"

Set Manufacturer Name to "Texas Instruments"

Set Package or Case Code to "92-TO"

Set Logic Function to "Regulator"

Set Role to "Power Conversion"

Set Role Details to "5 V low-dropout linear regulator for pedal power rail NP5V. TO-92-3 pinout (flat face, leads downward): Pin 1 = OUT (regulate..."

Set DD3 Pin 1 Function to "OUT (regulated 5 V output). Route to NP5V net. Place output bypass capacitor(s) close between OUT (Pin 1) and GND (Pin 2)."

Set DD3 Pin 2 Function to "GND. Connect to solid ground reference. Keep return for input/output capacitors local; avoid sharing with noisy digital curre..."

Set DD3 Pin 3 Function to "IN (unregulated VIN from DC jack PWR1 center pin). Place input bypass capacitor(s) close between IN (Pin 3) and GND (Pin 2)."

Set LP2950-50 Pin Note to "LP2950-50LPRE3 (TO-92-3, viewed from flat face, leads downward): Pin 1 = OUT (regulated 5 V output), Pin 2 = GND, Pin 3 = IN ..."

Set LP2950-50 Layout Guidelines to "Place input and output bypass capacitors as close as possible to LP2950-50 pins: (1) Input capacitor (e.g., 1–10 uF electroly..."

Set Max Output Voltage to "5"

Set Net Type to "Power"

88 days

Worked

0:29

88 days

flux

0:00

Work completed
  • Project description and system architecture fully updated
  • All core ICs (PT2399 delay, TL072 buffers, LP2950-50 regulator) placed and configured
  • All passive components added and wired per PDF schematic
  • 3PDT true-bypass switch with LED indicator implemented
  • Off-board pads for three 50 kΩ B potentiometers and two 1/4″ mono jacks (plus DC barrel jack) added
  • Component properties annotated and ERC errors resolved
Success criteria
  • ✅ Schematic accurately mirrors the provided PDF
  • ✅ 3PDT true-bypass circuit with LED indicator implemented
  • ✅ LP2950-50 correctly integrated and annotated with pinout guidance
  • ✅ Off-board pads for all pots and jacks added with correct labels
  • ✅ Passed ERC with no outstanding errors
Next step Proceed to PCB layout: review and assign footprints, configure stackup, place components, and route all nets.
88 days
Sign up to send
C13
Capacitance
2200pF
C15
Capacitance
0.22µF
R16
Resistance
12kΩ
R11
Resistance
180kΩ
C16
Capacitance
47pF
C11
Capacitance
2200pF
R3
Resistance
2.7kΩ
R12
Resistance
360kΩ
C7
Capacitance
0.1µF
R14
Resistance
10kΩ
R7
Resistance
1kΩ
C22
Capacitance
0.047µF
R5
Resistance
10kΩ
R10
Resistance
1MΩ
C10
Capacitance
0.015µF
R17
Resistance
1kΩ
CLR
Resistance
1MΩ
C8
Capacitance
0.1µF
R4
Resistance
10kΩ
C14
Capacitance
4700pF
R8
Resistance
10kΩ
C9
Capacitance
0.1µF
C19
Capacitance
100pF
R9
Resistance
10kΩ
R6
Resistance
20kΩ
R20
Resistance
5.1kΩ
R13
Resistance
22kΩ
C6
Capacitance
0.1µF
C23
Capacitance
0.022µF
R19
Resistance
2kΩ
C12
Capacitance
0.01µF
C3
Capacitance
0.1µF
R15
Resistance
20kΩ
R18
Resistance
100kΩ
GND
GND
TB_PORTAL
+4.5V
GND
GND
VR2 LEVEL
Resistance
Resistance
TB_PORTAL
GND
PORTAL_JACK_OUT
GND
GND
C5
Capacitance
47µF
GND
+4.5V
GND
PORTAL_JACK_OUT
GND
C2
Capacitance
47µF
GND
SW1
C20
Capacitance
1µF
GND
U2
TL072IP
+4.5V
GND
GND
C17
Capacitance
1µF
C4
Capacitance
47µF
J1
GND
C18
Capacitance
1µF
GND
GND
GND
GND
VR1 TIME
Resistance
Resistance
DD1
PT2399
LED1
DD3
LP2950-50LPRE3
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Net Portal
    Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
    jharwinbarrozo
    43.0M
  • Power Net Portal
    Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
    jharwinbarrozo
    11.4M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
    jharwinbarrozo
    15.8k
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • RMCF0805JT47K0
    RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
    jharwinbarrozo
    1.2M
  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
    jharwinbarrozo
    1.1M

Digital Delay Pedal S.O. (Solo)

Digital Delay Pedal S.O. (Solo) thumbnail
MODDED Boy in Well Digital Delay Pedal (PT2399-Based Guitar Effect) w/ Self Oscillation Switch

Properties

2

GND. Connect to solid ground reference. Keep return for input/output capacitors local; avoid sharing with noisy digital currents.

Texas Instruments

Regulator

{}

OUT (regulated 5 V output). Route to NP5V net. Place output bypass capacitor(s) close between OUT (Pin 1) and GND (Pin 2).

LP2950-50LPRE3 (TO-92-3, viewed from flat face, leads downward): Pin 1 = OUT (regulated 5 V output), Pin 2 = GND, Pin 3 = IN (unregulated input). Do NOT assume 78L05 pinout; 78L05 in TO-92 is typically 1 = IN, 2 = GND, 3 = OUT, which is reversed relative to LP2950-50.

5

V

solderpad.org/licenses/SHL-2.1/

R8

9

V

Power Conversion

{}

5 V low-dropout linear regulator for pedal power rail NP5V. TO-92-3 pinout (flat face, leads downward): Pin 1 = OUT (regulated 5 V), Pin 2 = GND, Pin 3 = IN (unregulated VIN). Do NOT use 78L05 pin mapping.

flowchart TD P(Power) --> IB(Input Buffer) IB --> DE(Delay Engine) DE --> F(Filters) F --> OB(Output Buffer) OB --> OUT(Output) F --> FB(Feedback) FB --> DE IB --> TB(True-Bypass) TB --> OUT

VCO

{}

{}

Power

Place input and output bypass capacitors as close as possible to LP2950-50 pins: (1) Input capacitor (e.g., 1–10 uF electrolytic or tantalum plus 100 nF ceramic) from IN (Pin 3) to GND (Pin 2), (2) Output capacitor (e.g., 1–10 uF low-ESR electrolytic or tantalum plus 100 nF ceramic) from OUT (Pin 1) to GND (Pin 2). Keep these loops compact, use a solid ground reference, and avoid routing noisy digital currents through the regulator ground return.

R7

LP2950-50LPRE3

92-TO

Battery

IN (unregulated VIN from DC jack PWR1 center pin). Place input bypass capacitor(s) close between IN (Pin 3) and GND (Pin 2).

Consumer Electronics

Linear Regulator

DD

Pricing & Availability

Distributor

Qty 1

Arrow

$2.37–$3.00

Digi-Key

$8.04–$9.53

LCSC

$9.27–$9.53

Mouser

$8.87

TME

$0.61

Verical

$2.59–$3.05

Controls