2 layers197 × 159 mm
2 layers78 × 57 mm
Envelope Generator
dingjamesj/electronic-trombone- Size
- 78 × 57 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 42
- Pads
- 169
- Tracks, vias
- 249, 18
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 30 Dec 2024
- Updated
- 3 Sep 2026
Overview
Envelope Generator is an open-source printed circuit board by dingjamesj, from the dingjamesj/electronic-trombone repository on GitHub. It is a 2-layer board of 78 × 57 mm with 65 parts on 42 nets, routed with 249 tracks and 18 vias.
Its parts include 11 capacitors, 11 diodes, 10 resistors, 3 ICs and 2 connectors.
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D13, D14, D15, D16, D17, D18, D19, D20, D21 |
| 8 | TestPoint_Small | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP17, TP18, TP19, TP20, TP21, TP22, TP23, TP24 |
| 7 | 100k | Potentiometer_THT:Potentiometer_Bourns_3339P_Vertical | RV10, RV15, RV16, RV17, RV18, RV23, RV24 |
| 6 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C21, C22, C23, C24, C25, C26 |
| 6 | 200k | Potentiometer_THT:Potentiometer_Bourns_3339P_Vertical | RV11, RV12, RV13, RV14, RV20, RV22 |
| 4 | 1u | Capacitor_THT:C_Rect_L7.2mm_W4.5mm_P5.00mm | C16, C17, C19, C20 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H13, H14, H15, H16 |
| 3 | 100k | Resistor_SMD:R_0805_2012Metric | R33, R34, R35 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric | R36, R41, R42 |
| 3 | 51k | Resistor_SMD:R_0805_2012Metric | R37, R39, R40 |
| 3 | TL074 | Package_DIP:DIP-14_W7.62mm | U5, U6, U7 |
| 2 | LED | LED_THT:LED_D5.0mm | D22, D23 |
| 2 | Screw_Terminal_01x03 | Header 691137710003:691137710003 | J7, J8 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Bourns_3339P_Vertical | RV19 |
| 1 | 10n | Capacitor_SMD:C_0805_2012Metric | C18 |
| 1 | 22k | Resistor_SMD:R_0805_2012Metric | R38 |
| 1 | 50k | Potentiometer_THT:Potentiometer_Bourns_3339P_Vertical | RV21 |
| 1 | LOGO | LOGO | G*** |
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Questions
How big is the Envelope Generator PCB?
It measures 78 × 57 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Envelope Generator use?
65 parts. 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 Envelope Generator KiCad files?
From the dingjamesj/electronic-trombone repository on GitHub, at the commit this page was made from: the board is KiCad/Envelope Generator/Envelope Generator.kicad_pcb and its schematic KiCad/Amplifier/Amplifier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Envelope Generator design in my own project?
Its repository states no licence, so its author keeps all rights: ask dingjamesj before reusing the design.