Backup r1
About the Backup r1 PCB
Backup r1 is an open source PCB design by blthree, published on GitHub. It is a 2-layer board measuring 99.4 × 78 mm, with 62 components from 39 distinct parts.
Other key parts include the TL072, CEM3340, LM337_TO220, LM317_3PinPackage and LTC1044. By type, the board carries 23 resistors, 16 capacitors, 13 connectors, 5 ICs and 1 diode.
It belongs with the audio designs in this gallery.
Main components on the Backup r1
Backup r1 bill of materials (BOM)
62 components, 39 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL072 | DIP-8_W7.62mm_Socket | U1 |
| 1 | CEM3340 | DIP-16_W7.62mm_Socket | U2 |
| 1 | LM337_TO220 | TO-220-3_Horizontal_TabDown | U3 |
| 1 | LM317_3PinPackage | TO-220-3_Horizontal_TabDown | U4 |
| 1 | LTC1044 | DIP-8_W7.62mm_Socket | U5 |
| 1 | 1V/Oct | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Expo CV | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Linear FM | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Soft Sync | PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | Hard Sync | PinHeader_1x02_P2.54mm_Vertical | J5 |
| 4 | PWM | PinHeader_1x02_P2.54mm_Vertical | J6, J11, J12, J13 |
| 2 | Power | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J7, J9 |
| 1 | Sqr Jump | PinHeader_1x02_P2.54mm_Vertical | J8 |
| 1 | Conn_01x08_Female | PinHeader_1x08_P2.54mm_Vertical | J10 |
| 1 | 10k | Potentiometer_Bourns_3296W_Vertical | RV1 |
| 1 | 5K | Potentiometer_Bourns_3386P_Vertical | RV2 |
| 1 | 100k | Potentiometer_Bourns_PTV09A-1_Single_Vertical | RV3 |
| 1 | R_POT_TRIM | Potentiometer_Bourns_3296W_Vertical | RV4 |
| 1 | D_ALT | D_DO-201AD_P12.70mm_Horizontal | D1 |
| 2 | 1n | C_Disc_D4.7mm_W2.5mm_P5.00mm | C1, C2 |
Show 19 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | 100n | C_Disc_D4.7mm_W2.5mm_P5.00mm | C3, C7, C9, C11, C12, C13, C14 |
| 2 | 10n | C_Disc_D4.7mm_W2.5mm_P5.00mm | C4, C5 |
| 1 | 1000p / Mica | C_Axial_L12.0mm_D6.5mm_P15.00mm_Horizontal | C6 |
| 2 | 10uF | CP_Radial_D7.5mm_P2.50mm | C8, C10 |
| 2 | 100uF | CP_Radial_D7.5mm_P2.50mm | C15, C16 |
| 4 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R1, R18, R19, R22 |
| 3 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R2, R12, R13 |
| 1 | 51K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R3 |
| 2 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R4, R7 |
| 2 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R5, R6 |
| 1 | 560k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R8 |
| 2 | 5.6k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R9, R15 |
| 1 | 1.8k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R10 |
| 1 | 18K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R11 |
| 1 | 220K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R14 |
| 1 | 680R | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R16 |
| 2 | 220R | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R17, R21 |
| 1 | 2K | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R20 |
| 1 | 20k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R23 |
Backup r1 design files
The KiCad project lives in the blthree/synth_schematics repository on GitHub; these links point at the commit this page was built from.
- Layoutcem/backup_r1.kicad_pcb
Backup r1: common questions
How big is the Backup r1 PCB?
The Backup r1 measures 99.4 × 78 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Backup r1?
62 components, from 39 distinct parts. The full bill of materials is listed on this page.
Where can I download the Backup r1 design files?
From the blthree/synth_schematics repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Backup r1 design in my own project?
The repository has no license, so all rights stay with blthree. Use it as a reference, and ask the author before reusing the design.
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