Phasor II
About the Phasor II PCB
Phasor II is an open source PCB design by JordanAceto, published on GitHub under the CC-BY-4.0 license. It is a 2-layer board measuring 84.5 × 108.3 mm, with 178 components from 68 distinct parts.
Other key parts include the RC4558, TL072, SSI2162, LDR_ring and LT3467A. By type, the board carries 77 resistors, 55 capacitors, 13 ICs, 10 diodes, 4 connectors and 4 test points.
It belongs with the audio designs in this gallery.
From the project
6-stage optical phase shifter pedal ala the Mu-tron II with extra features
Main components on the Phasor II
Phasor II bill of materials (BOM)
178 components, 68 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | RC4558 | SOIC-8_3.9x4.9mm_P1.27mm | U1, U2, U3, U4, U5 |
| 4 | TL072 | SOIC-8_3.9x4.9mm_P1.27mm | U6, U7, U8, U9 |
| 1 | SSI2162 | SSOP-10_3.9x4.9mm_P1.00mm | U10 |
| 1 | LDR_ring | LDR_ring | U301 |
| 1 | LT3467A | TSOT-23-6 | U801 |
| 1 | LM4040DBZ-5 | SOT-23 | U802 |
| 1 | MMBT3904 | SOT-23 | Q301 |
| 2 | MMBT3906 | SOT-23 | Q601, Q602 |
| 1 | AUDIO_IN | Jack_6.35mm_Neutrik_NMJ6HCD2_Horizontal | J1 |
| 1 | AUDIO_OUT | Jack_6.35mm_Neutrik_NMJ6HCD2_Horizontal | J2 |
| 1 | EXP_PEDAL_CV_IN | Jack_6.35mm_Neutrik_NMJ6HCD2_Horizontal | J3 |
| 1 | 9VDC_IN | BarrelJack_CUI_PJ-063AH_Horizontal | J4 |
| 1 | exp_pedal_dest_jumper | PinHeader_2x03_P2.54mm_Vertical | JP1 |
| 1 | 10K 10k | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV201 |
| 1 | 1k | Potentiometer_Bourns_3296W_Vertical | RV302 |
| 2 | 100K 100k | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV501, RV502 |
| 2 | 100K 100k | Potentiometer_Bourns_3296W_Vertical | RV503, RV701 |
| 1 | FOOTSWITCH | PinHeader_1x06_P2.54mm_Vertical | SW101 |
| 1 | GND | TestPoint_Bridge_Pitch7.62mm_Drill1.3mm | TP801 |
| 1 | +9 | TestPoint_Keystone_5000-5004_Miniature | TP802 |
Show 48 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | -12 | TestPoint_Keystone_5000-5004_Miniature | TP803 |
| 1 | +12 | TestPoint_Keystone_5000-5004_Miniature | TP804 |
| 5 | B5819W | D_SOD-123 | D1, D2, D3, D4, D101 |
| 2 | 1N4148W | D_SOD-123 | D301, D302 |
| 2 | BAT48ZFILM | D_SOD-123 | D501, D502 |
| 1 | LED | LED_D5.0mm | D601 |
| 3 | 100R @ 100MHz | L_0805_2012Metric | FB1, FB2, FB3 |
| 1 | 10uH, 1.2A | L_Taiyo-Yuden_NR-50xx | L1 |
| 3 | 4U7 4u7 | C_0805_2012Metric | C1, C5, C6 |
| 26 | 100N 100n | C_0603_1608Metric | C2, C203, C701, C702, C811, C812, C813, C814 +18 |
| 2 | 1u | C_0805_2012Metric | C3, C4 |
| 4 | 10U 10u | CP_Radial_D6.3mm_P2.50mm | C7, C8, C9, C10 |
| 1 | 47N 47n | C_Rect_L7.0mm_W2.5mm_P5.00mm | C201 |
| 1 | 22P 22p | C_0603_1608Metric | C202 |
| 1 | 3N3 3n3 | C_0603_1608Metric | C204 |
| 6 | 1n | C_0603_1608Metric | C205, C401, C501, C502, C504, C505 |
| 6 | 6N8 6n8 | C_0805_2012Metric | C301, C302, C303, C304, C305, C306 |
| 1 | 470N 470n | C_Rect_L7.0mm_W3.5mm_P5.00mm | C307 |
| 1 | 220N 220n | C_Rect_L7.0mm_W2.5mm_P5.00mm | C402 |
| 1 | 470P 470p | C_0603_1608Metric | C403 |
| 1 | 47N 47n | C_0805_2012Metric | C503 |
| 1 | 100P 100p | C_0603_1608Metric | C506 |
| 2 | 1 | R_0603_1608Metric | R1, R2 |
| 1 | 114K 114k | R_0603_1608Metric | R3 |
| 1 | 13K3 13k3 | R_0603_1608Metric | R4 |
| 5 | 10K 10k | R_0603_1608Metric | R102, R323, R513, R701, R702 |
| 1 | 1k | R_0603_1608Metric | R103 |
| 20 | 4K7 4k7 | R_0603_1608Metric | R201, R205, R207, R208, R209, R301, R303, R304 +12 |
| 2 | 390K 390k | R_0603_1608Metric | R202, R204 |
| 2 | 3K9 3k9 | R_0603_1608Metric | R203, R321 |
| 1 | 1K5 1k5 | R_0603_1608Metric | R206 |
| 8 | 220K 220k | R_0603_1608Metric | R302, R305, R308, R311, R314, R317, R324, R502 |
| 2 | 68K 68k | R_0603_1608Metric | R319, R322 |
| 1 | 220 | R_0603_1608Metric | R325 |
| 2 | 12K 12k | R_0603_1608Metric | R403, R508 |
| 11 | 100K 100k | R_0603_1608Metric | R501, R507, R510, R515, R518, R520, R602, R604 +3 |
| 2 | 22K 22k | R_0603_1608Metric | R503, R603 |
| 3 | 270 | R_0603_1608Metric | R504, R511, R605 |
| 2 | 56K 56k | R_0603_1608Metric | R505, R517 |
| 1 | 110K 110k | R_0603_1608Metric | R506 |
| 1 | 30K 30k | R_0603_1608Metric | R509 |
| 2 | 120K 120k | R_0603_1608Metric | R512, R514 |
| 1 | 18K 18k | R_0603_1608Metric | R516 |
| 1 | 39K 39k | R_0603_1608Metric | R519 |
| 1 | 33K 33k | R_0603_1608Metric | R601 |
| 1 | 20K 20k | R_0603_1608Metric | R703 |
| 2 | 200K 200k | R_0603_1608Metric | R704, R706 |
| 1 | 1K8 1k8 | R_0603_1608Metric | R805 |
Phasor II design files
The KiCad project lives in the JordanAceto/Phasor_II repository on GitHub; these links point at the commit this page was built from.
Phasor II: common questions
How big is the Phasor II PCB?
The Phasor II measures 84.5 × 108.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Phasor II?
178 components, from 68 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 Phasor II design files?
From the JordanAceto/Phasor_II 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 Phasor II design in my own project?
Yes, under the terms of its CC-BY-4.0 license, which JordanAceto chose for the repository.
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