Core
Core is an open source PCB design by shmoergh: a 2-layer, 215 × 100 mm board with 285 components (66 distinct parts). It is built around the TL072, LM311, 595-CD4002BE, LM358 and more. Filed under audio.
Fully analog two-voice monophonic synth for live performances
- 2x VCO - 2x Waveshapers - VCA - ADSR - 2x LFO - Sub source - Noise source - Output
Experimental — Some parts of the circuit contains multiple solutions, options that can be selected to build. In this version there are multiple ways to build thermal compensation for the VCOs depending on component availability (NTC based, PTS100 based); it contains a precision +/-5V circuit with output connectors that can be used on the UI board if necessary; and misc. options.
Built around
Parts list
285 components, 66 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 20 | TL072 JLCPCB | SOIC-8_3.9x4.9mm_P1.27mm | U201, U202, U204, U205, U207, U208, U209, U210 +12 |
| 2 | LM311 JLCPCB | SOIC-8_3.9x4.9mm_P1.27mm | U203, U206 |
| 1 | 595-CD4002BE 4002 Mouser | DIP-14_W7.62mm | U212 |
| 1 | LM358 JLCPCB | SOIC-8_3.9x4.9mm_P1.27mm | U213 |
| 1 | CD4053B JLCPCB | SOIC-16_3.9x9.9mm_P1.27mm | U215 |
| 1 | NE5532 JLCPCB | SOIC-8_3.9x4.9mm_P1.27mm | U216 |
| 1 | CD4040BM96 JLCPCB | SOIC-16_3.9x9.9mm_P1.27mm | U228 |
| 2 | 512-2N3906BU 2N3906 Mouser | TO-92L_Inline_Wide | Q201, Q204 |
| 3 | BC847BS JLCPCB | SOT-363_SC-70-6_Handsoldering | Q202, Q205, Q207 |
| 2 | 512-MMBFJ111 MMBFJ111 Mouser | SOT-23_Handsoldering | Q203, Q206 |
| 3 | 637-BC548C BC548C Mouser | TO-92L_Inline_Wide | Q208, Q209, Q210 |
| 3 | MMBT5551 JLCPCB | SOT-23 | Q212, Q213, Q214 |
| 4 | 737-RS2-16-G Conn_02x08_Counter_Clockwise Mouser | PinHeader_2x08_P2.54mm_Vertical | J201, J202, J203, J204 |
| 1 | 737-RS2-08-G Conn_02x04_Counter_Clockwise Mouser | PinHeader_2x04_P2.54mm_Vertical | J214 |
| 1 | Conn_02x05_Odd_Even | PinHeader_2x05_P2.54mm_Vertical | J_POWER201 |
| 5 | 531-PT6KH104A1010PM 100k Mouser | Potentiometer_ACP_CA6-H2,5_Horizontal | RV201, RV202, RV203, RV204, RV205 |
| 3 | 100k | Potentiometer_Bourns_3006P_Horizontal | RV_ADSR_MAX_VOLTAGE201, RV_TRI_BIAS201, RV_TRI_BIAS202 |
| 1 | 100k | Potentiometer_ACP_CA6-H2,5_Horizontal | RV_HEADPHONE_LIM201 |
| 1 | 10k | Potentiometer_ACP_CA6-H2,5_Horizontal | RV_LINE_OUT_LVL201 |
| 2 | 10k | Potentiometer_Bourns_3006P_Horizontal | RV_SAW_BIAS201, RV_SAW_BIAS202 |
Show 46 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 20k | Potentiometer_Bourns_3006P_Horizontal | R_WIDTH201, R_WIDTH202 |
| 2 | 594-PTS120601B100RP PTS120601B100RP100 Mouser | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | TH201, TH202 |
| 2 | Red LED | LED_D5.0mm | D_NEGATIVE_LIMITER201, D_POSITIVE_LIMITER201 |
| 7 | 1N4148 JLCPCB | D_SOD-123 | D203, D204, D207, D212, D213, D216, D217 |
| 48 | 100N 100n JLCPCB | C_0603_1608Metric | C201, C202, C203, C204, C205, C206, C211, C212 +40 |
| 3 | 100P 100p JLCPCB | C_0603_1608Metric | C208, C218, C276 |
| 2 | 22P 22p JLCPCB | C_0603_1608Metric | C210, C220 |
| 4 | 22UF 22uF JLCPCB | CP_Elec_6.3x5.4 | C225, C226, C227, C275 |
| 2 | 33P 33p JLCPCB | C_0603_1608Metric | C236, C272 |
| 1 | 10N 10n JLCPCB | C_0603_1608Metric | C240 |
| 1 | 598-106RSS050M 10u Mouser | CP_Radial_D6.3mm_P2.50mm | C241 |
| 1 | 80-R82EC4100Z370K 1u (foil or electrolite) Mouser | C_Rect_L7.2mm_W5.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C248 |
| 2 | 80-R82EC1330AA50K 22n-47n (foil) Mouser | C_Rect_L7.0mm_W2.5mm_P5.00mm | C251, C255 |
| 4 | 47U 47u JLCPCB | CP_Elec_6.3x5.4 | C252, C256, C280, C281 |
| 2 | 100U 100u JLCPCB | CP_Elec_6.3x7.7 | C260, C261 |
| 6 | 47P 47p JLCPCB | C_0603_1608Metric | C273, C274, C282, C283, C284, C285 |
| 1 | 1u JLCPCB | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C277 |
| 50 | 100K 100k JLCPCB | R_0603_1608Metric | R201, R213, R216, R228, R232, R235, R237, R242 +42 |
| 4 | 150K 150k JLCPCB | R_0603_1608Metric | R202, R212, R217, R227 |
| 2 | 603-MFR50SFTE52-91K 91k Mouser | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R203, R218 |
| 2 | 603-MFR50SFTE52-6K2 6.2k (50ppm) Mouser | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R204, R219 |
| 6 | 1M JLCPCB | R_0603_1608Metric | R205, R208, R220, R223, R322, R323 |
| 2 | 603-MFR50SFTE52-4R22 4R22 (50ppm) Mouser | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R206, R221 |
| 4 | 1.5K 1.5k JLCPCB | R_0603_1608Metric | R207, R209, R222, R224 |
| 2 | 510 JLCPCB | R_0603_1608Metric | R210, R225 |
| 2 | 22K 22k JLCPCB | R_0603_1608Metric | R211, R226 |
| 2 | 330K 330k JLCPCB | R_0603_1608Metric | R214, R229 |
| 5 | 2.2K 2.2k JLCPCB | R_0603_1608Metric | R215, R230, R258, R297, R312 |
| 1 | 4.7K 4.7k JLCPCB | R_0603_1608Metric | R231 |
| 1 | 220 JLCPCB | R_0603_1608Metric | R233 |
| 2 | 33K 33k JLCPCB | R_0603_1608Metric | R234, R245 |
| 8 | 10K 10k JLCPCB | R_0603_1608Metric | R236, R238, R239, R266, R288, R289, R324, R325 |
| 3 | 470K 470k JLCPCB | R_0603_1608Metric | R240, R241, R296 |
| 4 | 15K 15k JLCPCB | R_0603_1608Metric | R248, R249, R302, R303 |
| 2 | 27K 27k JLCPCB | R_0603_1608Metric | R251, R305 |
| 5 | 220K 220k JLCPCB | R_0603_1608Metric | R256, R259, R310, R313, R320 |
| 13 | 47K 47k JLCPCB | R_0603_1608Metric | R257, R267, R290, R291, R292, R293, R311, R321 +5 |
| 2 | 2.2M JLCPCB | R_0603_1608Metric | R260, R314 |
| 3 | 240K 240k JLCPCB | R_0603_1608Metric | R261, R300, R315 |
| 1 | 75K 75k JLCPCB | R_0603_1608Metric | R265 |
| 1 | 603-MFR-25FBF52-470R 470 Mouser | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R268 |
| 5 | 1k JLCPCB | R_0603_1608Metric | R269, R272, R277, R294, R295 |
| 1 | 100K 100k JLCPCB | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R270 |
| 1 | 150 JLCPCB | R_0603_1608Metric | R271 |
| 2 | 100 JLCPCB | R_0603_1608Metric | R273, R274 |
| 1 | 3.3M JLCPCB | R_0603_1608Metric | R298 |
More boards in hog
Similar boards
Simplemixsmall
nickajeglin
42.6 × 80 mm59 parts2LNo license207
Mult
43.7 × 94.2 mm36 parts2LNo license207
Logiverter
40.1 × 107.1 mm74 parts2LNo license207
Vca
45.2 × 146.8 mm79 parts2LNo license207
VCO
37 × 113.9 mm104 parts2LNo license207
Mix
47 × 79.8 mm56 parts2LNo license207