Rmc pizz arco
About the Rmc pizz arco PCB
Rmc pizz arco is an open source PCB design by pythagorean-comma, published on GitHub. It is a 4-layer board measuring 77.2 × 82.4 mm, with 80 components from 14 distinct parts.
Other key parts include the OPA4191IDR and CD4066BM96. By type, the board carries 35 capacitors, 32 resistors, 8 connectors and 5 ICs.
From the project
A six-channel phase-switching preamp for RMC pizz/arco piezo pickups, generated from source rather than drawn by hand.
A six-channel phase-switching preamp for RMC pizz/arco piezo pickups, generated from source rather than drawn by hand.
Each of the six saddles of a viola da gamba bridge holds two piezo elements. This board sums each pair into a single high-impedance output that looks like a piezo to an RMC Poly-Drive II, and lets a toggle flip the relative polarity of the two: in phase for picking, out of phase for bowing. It is six copies of one channel of RMC's own schematic (docs/Pizz-Arco-Switching-260729.png), plus the supply and switching that drawing leaves open.
Main components on the Rmc pizz arco
Rmc pizz arco bill of materials (BOM)
80 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | OPA4191IDR OPA4191 | SOIC-14_3.9x8.7mm_P1.27mm | U1, U2, U3 |
| 2 | CD4066BM96 CD4066B | SO-14_3.9x8.65mm_P1.27mm | U4, U5 |
| 6 | 61300311121 PZT | PinHeader_1x03_P2.54mm_Vertical | J1, J2, J3, J4, J5, J6 |
| 1 | 61300911121 DIN-8 | PinHeader_1x09_P2.54mm_Vertical | J7 |
| 1 | 61300211121 PIZZ/ARCO | PinHeader_1x02_P2.54mm_Vertical | J8 |
| 18 | CC1206JRNPO9BN101 100p/50V C0G | C_1206_3216Metric | C101, C102, C103, C201, C202, C203, C301, C302 +10 |
| 6 | CC1206GRNPO9BN182 1n8/50V C0G 2% | C_1206_3216Metric | C104, C204, C304, C404, C504, C604 |
| 1 | C1206C103J5GACTU 10n/50V C0G | C_1206_3216Metric | C701 |
| 10 | C1206C475K3RACTU 4u7/25V X7R | C_1206_3216Metric | C901, C902, C911, C912, C921, C922, C931, C932 +2 |
| 6 | RC1206FR-071KL 1k | R_1206_3216Metric | R101, R201, R301, R401, R501, R601 |
| 6 | RC1206FR-073M3L 3M3 | R_1206_3216Metric | R102, R202, R302, R402, R502, R602 |
| 18 | RC1206FR-0747KL 47k 1% | R_1206_3216Metric | R104, R105, R106, R204, R205, R206, R304, R305 +10 |
| 1 | RC1206FR-071ML 1M | R_1206_3216Metric | R701 |
| 1 | RC1206FR-0720KL 20k | R_1206_3216Metric | R702 |
Rmc pizz arco design files
The KiCad project lives in the pythagorean-comma/rmc-pizz-arco repository on GitHub; these links point at the commit this page was built from.
Rmc pizz arco: common questions
How big is the Rmc pizz arco PCB?
The Rmc pizz arco measures 77.2 × 82.4 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Rmc pizz arco?
80 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Rmc pizz arco design files?
From the pythagorean-comma/rmc-pizz-arco repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Rmc pizz arco design in my own project?
The repository has no license, so all rights stay with pythagorean-comma. Use it as a reference, and ask the author before reusing the design.