Mainboard6
About the Mainboard6 PCB
Mainboard6 is an open source PCB design by subatomicglue, published on GitHub. It is a board measuring 237.7 × 180.3 mm, with 417 components from 79 distinct parts.
Other key parts include the 74126N, AT25P, MEGA162P, 74595N and 4174P. By type, the board carries 182 resistors, 63 capacitors, 40 LEDs, 39 transistors, 27 switches and 24 ICs.
From the project
Just the sequencer from the x0xb0x - from ladyada's x0xb0x project
ladyada's original x0xb0x mainboard and ioboard files were created with a version of EAGLE older than ver6.
EAGLE is now owned by autodesk, and is only available with FUSION 360 which costs money...
Let's use the excellent free/opensource KiCAD tool instead!
How we converted to KiCAD: - we loaded the original LadyAda mainboard and ioboard files into EAGLE 6 freeware, and saved. - we then imported the EAGLE6 files into KiCAD 5.1.2
Main components on the Mainboard6
Mainboard6 bill of materials (BOM)
417 components, 79 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74126N | DIL14 | IC1 |
| 1 | AT25P | DIL08 | IC2 |
| 1 | MEGA162P | DIL40 | IC3 |
| 5 | 74595N | DIL16 | IC4, IC5, IC6, IC7, IC8 |
| 1 | 4174P | DIL16 | IC9 |
| 1 | AN6562N | DIL08 | IC11 |
| 1 | 4066N | DIL14 | IC12 |
| 1 | LA44140 | SIP9 | IC14 |
| 1 | BA662 | SIP9 | IC15A1 |
| 1 | BA6110 | SIP9 | IC15B1 |
| 3 | 74165N | DIL16 | IC16, IC17, IC18 |
| 7 | — | 1,3 | U$2, U$23, U$24, U$25, U$27, U$28, U$29 |
| 10 | 2SA733P | TO92 | Q1, Q2, Q8, Q9, Q10, Q27, Q31, Q33 +2 |
| 20 | 2SC536F | 2SC536F | Q3, Q4, Q5, Q11, Q13, Q14, Q15, Q16 +12 |
| 3 | 2SC1583 | SSIP5 | Q12, Q21, Q26 |
| 2 | 2SC536F | 2SC536_UNEVEN | Q17, Q23 |
| 1 | 2SC536FUNEVEN | 2SC536_UNEVEN | Q19 |
| 1 | 2SC2291 | SSIP5 | Q22 |
| 2 | 2SK30 | 2SK30 | Q28, Q39 |
| 1 | J12MM | 12 | J1 |
Show 59 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | J15MM | 15 | J2 |
| 1 | MA12-1 | MA12-1 | J3 |
| 4 | MA03-1 | MA03-1 | J4, J5, J6, J7 |
| 1 | SWITCH_GND | NKKTOGGLE | S1 |
| 1 | PEC11-S | PEC11-S | S2 |
| 2 | GH3074 | GH3074 | S3, S4 |
| 23 | 40-XX | B3F-40XX | S5, S6, S7, S8, S9, S10, S11, S12 +15 |
| 1 | 500K(B) | 306 | TM3 |
| 1 | 50K(B) | 306 | TM4 |
| 1 | 5K(B) | 306 | TM5 |
| 2 | 50K(B) | EVU | VR2, VR7 |
| 3 | 50K(A) | EVU | VR3, VR5, VR8 |
| 1 | 50K(B) | ALPHADUAL | VR4 |
| 1 | 1M(A) | ALPHADUAL | VR6 |
| 1 | 2SC2021R | 2SC2021 | XTL1 |
| 40 | LED5MM | LED5MM | LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +32 |
| 24 | 1N4148 | DO35-10 | D1, D2, D3, D4, D5, D6, D7, D8 +16 |
| 5 | .01 | C050-024X044 | C10, C20, C21, C33, C46 |
| 12 | 1/50 | E5-6 | C11, C13, C14, C15, C22, C23, C29, C38 +4 |
| 9 | 10/16 | E5-6 | C16, C30, C31, C32, C37, C40, C50, C52 +1 |
| 1 | 1/50 | E3,5-8 | C17 |
| 1 | .018 | C050-025X075 | C18 |
| 3 | .033 | C050-025X075 | C19, C24, C36 |
| 3 | .1 | C050-030X075 | C25, C27, C41 |
| 1 | .033 | C075-032X103 | C26 |
| 4 | 47/16 | E5-6 | C28, C44, C53, C55 |
| 3 | .001 | C050-035X075 | C34, C100, C101 |
| 1 | .22 | C050-045X075 | C35 |
| 2 | 1/35 | E2,5-7 | C42, C62 |
| 1 | 1000/6.3 | E5-5 | C43 |
| 1 | .068 | C050-050X075 | C45 |
| 1 | .0068 | C050-075X075 | C47 |
| 2 | 100/6.3 | E5-6 | C48, C49 |
| 1 | 2.2/50 | E5-6 | C51 |
| 1 | .047 | C050-055X075 | C54 |
| 1 | 100/10 | E5-6 | C102 |
| 10 | .1 | C050H075X075 | C103, C104, C106, C107, C108, C109, C110, C111 +2 |
| 87 | 10k | 0207_5V | R34, R36, R47, R61, R64, R65, R94, R101 +79 |
| 20 | 100K | 0207_5V | R35, R59, R66, R72, R73, R92, R93, R99 +12 |
| 10 | 22K | 0207_5V | R45, R60, R110, R111, R117, R120, R129, R134 +2 |
| 4 | 47K | 0207_5V | R46, R119, R127, R155 |
| 8 | 220K | 0207_5V | R62, R63, R103, R121, R128, R131, R235, R236 |
| 13 | 2.2K | 0207_5V | R67, R68, R69, R70, R71, R104, R107, R108 +5 |
| 17 | 200k | 0207_5V | R74, R75, R76, R77, R78, R79, R80, R81 +9 |
| 2 | 1M | 0207_5V | R91, R200 |
| 5 | 100 | 0207_5V | R95, R130, R132, R136, R152 |
| 3 | 10K | 0207_2V | R96, R97, R115 |
| 1 | 2.2K | 0207_2V | R98 |
| 2 | THERMISTOR-7,5 | R-7,5 | R100A1, R100B1 |
| 1 | 27K | 0207_5V | R106 |
| 1 | 1.5M | 0207_5V | R123 |
| 1 | 4.7k | 0207_5V | R135 |
| 1 | 1K | 0207_10 | R137 |
| 1 | 68K | 0207_5V | R138 |
| 1 | 22 | 0207_5V | R150 |
| 1 | 33K | 0207_5V | R159 |
| 1 | 1K | 0207_5V | R161 |
| 1 | 10K | 0207_10 | R232 |
| 1 | 10K | 0207_15 | R234 |
Mainboard6 design files
The KiCad project lives in the subatomicglue/x0xs3q repository on GitHub; these links point at the commit this page was built from.
Mainboard6: common questions
How big is the Mainboard6 PCB?
The Mainboard6 measures 237.7 × 180.3 mm and is 1.6 mm thick.
How many components are on the Mainboard6?
417 components, from 79 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mainboard6 design files?
From the subatomicglue/x0xs3q repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Mainboard6 design in my own project?
The repository has no license, so all rights stay with subatomicglue. Use it as a reference, and ask the author before reusing the design.
