2 layers281.1 × 236.5 mm
MiniDrumkit2
Fihdi/MiniDrumkit
Eurorack DrumKit module with a 3 channel wave-file player and analog Hi-Hat and Kick Drum sections
239 parts15MIT
4 layers100 × 65 mm
OctaveEnv
hsetlik/octaveEnv1Dual octave pedal modulated by an internal envelope follower
- Size
- 100 × 65 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 91
- Nets
- 75
- Pads
- 259
- Tracks, vias
- 521, 59
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 2 Dec 2024
- Updated
- 12 Jan 2025
Overview
OctaveEnv is an open-source printed circuit board by hsetlik, from the hsetlik/octaveEnv repository on GitHub. It is a 4-layer board of 100 × 65 mm with 91 parts on 75 nets, routed with 521 tracks and 59 vias.
It is built around the LM13700M, TL072 and 74HCT74D, with the L7805, BC857 and PMEG3030EP among its other parts. Its parts include 33 resistors, 26 capacitors, 7 ICs, 5 diodes and 3 connectors.
Main components
6
LM13700M
SOIC-16-16V~-4.75V、4.75V~16V 0℃~+70℃ 110dB 2 2.6mA 20mA 400nA 4mV 50V/us 600nA 9.5V~32V SOIC-16 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
74HCT74D
SOIC-14-40℃~+125℃ 1 2 3.5pF 3ns 4.5V~5.5V 40uA 44ns@4.5V,50pF 4mA 4mA 59MHz 5ns 74HCT Series Asynchronous Complementary D-Type Rising Edge Set and Reset SO-14 Flip Flops ROHSNexperia74 Series
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BC857
SOT-231 PNP 100MHz 100mA 15nA 200mW 45V 5V 650mV 800 PNP SOT-23 Bipolar (BJT) ROHSSTMicroelectronicsBipolar (BJT)
PMEG3030EP
SOD-1281 Independent 30V 360mV@3A 3A 50A 5mA@30V SOD-128 Schottky Diodes ROHSNexperiaSchottky Diodes
Parts
91| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100n | Capacitor_SMD:C_0805_2012Metric | C102, C103, C107, C108, C115, C116, C117, C118, C119, C120, C121 |
| 7 | 1u | Capacitor_SMD:C_0805_2012Metric | C109, C110, C111, C114, C124, C125, C126 |
| 6 | 100k | Resistor_SMD:R_0805_2012Metric | R109, R114, R115, R128, R129, R130 |
| 6 | 47k | Resistor_SMD:R_0805_2012Metric | R106, R108, R111, R112, R118, R127 |
| 4 | 1k | Resistor_SMD:R_0805_2012Metric | R101, R110, R125, R126 |
| 3 | 1N4148 | Diode_SMD:D_SOD-123 | D103, D104, D105 |
| 3 | 1n | Capacitor_SMD:C_0805_2012Metric | C112, C113, C123 |
| 3 | 680 | Resistor_SMD:R_0805_2012Metric | R116, R117, R123 |
| 2 | 100kA | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | POT102, POT105 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R105, R122 |
| 2 | 220k | Resistor_SMD:R_0805_2012Metric | R107, R113 |
| 2 | 22k | Resistor_SMD:R_0805_2012Metric | R124, R131 |
| 2 | 470 | Resistor_SMD:R_0805_2012Metric | R121, R132 |
| 2 | 470u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C105, C106 |
| 2 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U103, U106 |
| 1 | 0.24R | Resistor_SMD:R_0805_2012Metric | R102 |
| 1 | 100u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C101 |
| 1 | 10kB | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | POT101 |
| 1 | 1MB | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | POT103 |
| 1 | 330k | Resistor_SMD:R_0805_2012Metric | R119 |
| 1 | 470n | Capacitor_SMD:C_0805_2012Metric | C122 |
| 1 | 470p | Capacitor_SMD:C_0805_2012Metric | C104 |
| 1 | 4k7 | Resistor_SMD:R_0805_2012Metric | R120 |
| 1 | 50kB | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | POT104 |
| 1 | 51k | Resistor_SMD:R_0805_2012Metric | R103 |
| 1 | 68uH | Inductor_SMD:L_TDK_VLS6045EX_VLS6045AF | L101 |
| 1 | 74HCT74 | Package_SO:SO-14_3.9x8.65mm_P1.27mm | U104 |
| 1 | 8k2 | Resistor_SMD:R_0805_2012Metric | R104 |
| 1 | AZ34063U | Package_SO:SO-8_3.9x4.9mm_P1.27mm | U101 |
| 1 | BC857 | Package_TO_SOT_SMD:SOT-23 | Q101 |
| 1 | EDGE | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP105 |
| 1 | ENV | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP102 |
| 1 | GTR GAIN | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP101 |
| 1 | IN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J101 |
| 1 | L7805 | PCM_4ms_Package_TO:TO-220-3_Vertical | U102 |
| 1 | LED | LED_THT:LED_D3.0mm | D101 |
| 1 | LM13700 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U105 |
| 1 | LOOP | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R133 |
| 1 | OUT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J103 |
| 1 | PMEG3030 | Diode_SMD:D_SOD-123 | D102 |
| 1 | PWR | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J102 |
| 1 | SQR1 | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP106 |
| 1 | SQR2 | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP107 |
| 1 | SWC | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP108 |
| 1 | SWE | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP109 |
| 1 | Stomp | Connector_Audio:StompSwitchBreakout_P200 | SW101 |
| 1 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U107 |
| 1 | VCA IN | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP103 |
| 1 | VCA_OUT | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm_VAL | TP104 |
Questions
How big is the OctaveEnv PCB?
It measures 100 × 65 mm and has 4 copper layers, 1.6 mm thick.
What parts does the OctaveEnv use?
91 parts, built around the LM13700M, TL072, 74HCT74D and L7805. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the OctaveEnv KiCad files?
From the hsetlik/octaveEnv repository on GitHub, at the commit this page was made from: the board is OctaveEnv.kicad_pcb and its schematic OctaveEnv.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OctaveEnv design in my own project?
Its repository states no licence, so its author keeps all rights: ask hsetlik before reusing the design.
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