2HP ADSR module based on "Fastest Envelope in the West" by René Schmitz (https://www.schmitzbits.de/adsr.html)
ADSR is an open-source printed circuit board by kraakenstuff, from the kraakenstuff/ADSR repository on GitHub. It is a 2-layer board of 9.9 × 110.1 mm with 44 parts on 37 nets, routed with 347 tracks and 37 vias.
It is built around the LM358, NE555 and MMBT3904, with the B10K among its other parts. Its parts include 12 resistors, 10 capacitors, 8 diodes, 4 transistors and 3 connectors.
2HP ADSR module based on "Fastest Envelope in the West" by René Schmitz (https://www.schmitzbits.de/adsr.html)
Status: Working fine.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C4, C5, C6, C7, C10 |
| 5 | 1n4148 | Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D2, D3, D4, D5 |
| 4 | 4k7 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R2, R4, R6, R9 |
| 4 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4 |
| 3 | 100R | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R7, R8, R10 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1, R5 |
| 2 | 10n | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1, C2 |
| 2 | 10u | Capacitor_SMD:CP_Elec_4x4.5 | C8, C9 |
| 2 | 1N5819 | Diode_SMD:D_SOD-123 | D6, D7 |
| 2 | B500k | KraakenStuff:POT-9MM-ALPHA | RV2, RV4 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R11 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R12 |
| 1 | 2.2u | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C3 |
| 1 | 22k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R3 |
| 1 | B10k | KraakenStuff:POT-9MM-ALPHA | RV3 |
| 1 | B1M | KraakenStuff:POT-9MM-ALPHA | RV1 |
| 1 | EuroPower | KraakenStuff:EuroHeader10 | J3 |
| 1 | Gate | KraakenStuff:PJ301M-12-NoHole | J1 |
| 1 | LED | LED_THT:LED_D3.0mm | D8 |
| 1 | LM358 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | MountingHole_2.2mm_M2 | MountingHole:MountingHole_2.2mm_M2 | ~ |
| 1 | NE555 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | Out | KraakenStuff:PJ301M-12-NoHole | J2 |
It measures 9.9 × 110.1 mm and has 2 copper layers, 1.6 mm thick.
44 parts, built around the LM358, NE555, MMBT3904 and B10K. 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.
From the kraakenstuff/ADSR repository on GitHub, at the commit this page was made from: the board is ADSR.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask kraakenstuff before reusing the design.
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