EMLD
About the EMLD PCB
EMLD is an open source PCB design by UEPro, published on GitHub. It is a 2-layer board measuring 90 × 43 mm, with 38 components from 19 distinct parts.
Other key parts include the NE5532. By type, the board carries 14 capacitors, 12 resistors, 3 connectors, 2 ICs, 2 diodes and 2 inductors.
It belongs with the audio designs in this gallery.
From the project
Electromagnetic Listening Device
This PCB was designed for a Workshop in Germany, thus the documentation is in German. Contact me if you need a translation (Contact info in folder "Documentation", file "Anleitung_EMLD")
Hallo ihr Lieben, ich hoffe ihr hattet alle ein tolles Festival und seid gut Heim gekommen. :)
Vielen Dank, dass ihr beim Workshop mitgemacht habt. Es hat mir riesigen Spaß gemacht, mit euch zu Arbeiten und ich hoffe auch ihr hattet Freude am basteln.
Main components on the EMLD
EMLD bill of materials (BOM)
38 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | NE5532 | DIP-8_300 | U1, U2 |
| 1 | FDN304 | SOT23-Handsoldering | Q1 |
| 1 | Klinke-stereo | Lumberg-1503-07-Klinke-3,5mm | J1 |
| 1 | BatIn | PinArray-100mil-1x2 | J2 |
| 1 | Val* | PinArray-100mil-1x2 | J3 |
| 1 | S_1P2T | S-Schiebeschalter_China_SPDT | S1 |
| 1 | 10k log | VR-Alps_R12L_vert | VR1 |
| 1 | 3V | Diode_MiniMELF-Handsoldering | D1 |
| 1 | 3mm/cyan | LED_2pin-3mm | D2 |
| 2 | 22mH | C_round-radial-bipolar-5mm-12,5mm | L1, L2 |
| 4 | 100n | C_rect-radial-bipolar-100mil-2x5mm | C1, C2, C3, C4 |
| 4 | 2µ2 | C-Rect_L7_W11_P5 | C5, C6, C11, C12 |
| 4 | 47p | C_rect-radial-bipolar-100mil-2x5mm | C7, C8, C9, C10 |
| 2 | 220µ/16V | C_round-radial-polar-2,5mm-6,3mm | C13, C14 |
| 4 | 1k | R_axial_400mil | R1, R2, R5, R6 |
| 4 | 120k | R_axial_400mil | R3, R4, R7, R8 |
| 1 | 100k | SMD0805-HandSoldering | R9 |
| 1 | 10k | R_axial_400mil | R10 |
| 2 | 100k | R_axial_400mil | R11, R12 |
EMLD design files
The KiCad project lives in the UEPro/EMLD repository on GitHub; these links point at the commit this page was built from.
EMLD: common questions
How big is the EMLD PCB?
The EMLD measures 90 × 43 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the EMLD?
38 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the EMLD design files?
From the UEPro/EMLD repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the EMLD design in my own project?
The repository has no license, so all rights stay with UEPro. Use it as a reference, and ask the author before reusing the design.
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