VCF and VCO
About the VCF and VCO PCB
VCF and VCO is an open source PCB design by promesoft, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 182 components from 89 distinct parts.
Other key parts include the TL074 and ICL8038. By type, the board carries 77 resistors, 40 capacitors, 18 connectors, 17 diodes, 10 transistors and 2 ICs.
It belongs with the audio designs in this gallery.
From the project
Adoption of the original 1974 steiner VCF THT+SMD - And ICL8083 VCO RevB
* R119 swap with 220nF-1uF to ac couple input stage
* R126 swap with 1uF to ac couple input stage
Main components on the VCF and VCO
VCF and VCO bill of materials (BOM)
182 components, 89 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL074 | SOIC-14_3.9x8.7mm_P1.27mm | U301 |
| 1 | ICL8038 | DIP-14_W7.62mm | U302 |
| 1 | BC559 | TO-92_Inline | Q101 |
| 5 | BC549 | TO-92_Inline | Q102, Q103, Q104, Q105, Q106 |
| 1 | MMBT2907A | SOT-23-3 | Q201 |
| 3 | MMBT2222A | SOT-23-3 | Q202, Q203, Q204 |
| 2 | HP | PJ301SM | J101, J201 |
| 2 | BP | PJ301SM | J102, J202 |
| 2 | LP | PJ301SM | J103, J203 |
| 2 | Out | PJ301SM | J104, J204 |
| 4 | CV | PJ301SM | J105, J106, J205, J305 |
| 1 | Sine | PJ301SM | J301 |
| 1 | Tri | PJ301SM | J302 |
| 1 | Sq | PJ301SM | J303 |
| 3 | Doepfer_Power_10pin | IDC-Header_2x05_Pitch2.54mm_Straight | P101, P201, P301 |
| 1 | 5k | Potentiometer_China_RK09_Single_Vertical_AJ | RV101 |
| 5 | 100k | Potentiometer_China_RK09_Single_Vertical_AJ | RV102, RV103, RV104, RV202, RV203 |
| 1 | 2k | Potentiometer_Piher_PT-6-V_Vertical | RV105 |
| 1 | 10k | Potentiometer_China_RK09_Single_Vertical_AJ | RV201 |
| 1 | 50k Sin | Potentiometer_China_RK09_Single_Vertical_AJ | RV301 |
Show 69 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 50k Tri | Potentiometer_China_RK09_Single_Vertical_AJ | RV302 |
| 1 | 100k Duty | Potentiometer_China_RK09_Single_Vertical_AJ | RV303 |
| 1 | 1k | Potentiometer_Piher_PT-6-V_Vertical | RV304 |
| 1 | 50k SQ | Potentiometer_China_RK09_Single_Vertical_AJ | RV305 |
| 1 | 100k | Potentiometer_Piher_PT-6-V_Vertical | RV306 |
| 1 | 100k Glide | Potentiometer_China_RK09_Single_Vertical_AJ | RV307 |
| 1 | 100k CV | Potentiometer_China_RK09_Single_Vertical_AJ | RV309 |
| 1 | 100k Coarse | Potentiometer_China_RK09_Single_Vertical_AJ | RV310 |
| 1 | 100k fine | Potentiometer_China_RK09_Single_Vertical_AJ | RV311 |
| 8 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D101, D102, D103, D104, D105, D106, D107, D108 |
| 8 | MMSD4148 | D_SOD-123 | D201, D202, D203, D204, D205, D206, D207, D208 |
| 1 | MMSD4148 | D_MiniMELF | D302 |
| 2 | C | C_Rect_L7.0mm_W2.0mm_P5.00mm | C101, C104 |
| 2 | CP | C_Radial_D8.0mm_H7.0mm_P3.50mm | C102, C105 |
| 2 | 100u | C_Radial_D8.0mm_H7.0mm_P3.50mm | C103, C111 |
| 1 | 1u | C_Rect_L7.0mm_W2.0mm_P5.00mm | C106 |
| 3 | 10u | C_Radial_D8.0mm_H7.0mm_P3.50mm | C107, C113, C116 |
| 3 | 4n7 | C_Rect_L7.0mm_W2.0mm_P5.00mm | C108, C109, C110 |
| 1 | 100n | C_Rect_L7.0mm_W2.0mm_P5.00mm | C112 |
| 2 | 220n | C_Rect_L7.0mm_W2.0mm_P5.00mm | C114, C115 |
| 3 | 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C201, C301, C303 |
| 2 | 100uF | C_1206_3216Metric | C202, C205 |
| 1 | 150u | C_1206_3216Metric | C203 |
| 1 | 100nF | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C204 |
| 3 | 1u | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C206, C214, C308 |
| 1 | 10u | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C207 |
| 4 | 4n7 | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C208, C209, C210, C305 |
| 1 | 100u | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C211 |
| 1 | 220n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C212 |
| 1 | 470n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C213 |
| 2 | 22u | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C215, C216 |
| 2 | 100u | C_1206_3216Metric | C302, C304 |
| 1 | 4u7 | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C306 |
| 1 | 1n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C307 |
| 1 | 360 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R101 |
| 2 | 82k | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R102, R127 |
| 1 | 3M3 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R103 |
| 2 | 15k | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R104, R129 |
| 7 | 1k | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R105, R108, R113, R119, R122, R126, R130 |
| 4 | 2k | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R106, R107, R109, R110 |
| 4 | 10k | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R111, R121, R125, R132 |
| 6 | 47k | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R112, R115, R120, R123, R128, R131 |
| 1 | 3k9 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R114 |
| 1 | 82 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R116 |
| 1 | 680 | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R117 |
| 1 | 100k | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R118 |
| 1 | 220k | R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R124 |
| 1 | 360 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R201 |
| 2 | 82k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R202, R211 |
| 1 | 3M3 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R203 |
| 4 | 12k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R204, R221, R303, R316 |
| 4 | 1k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R205, R208, R213, R217 |
| 4 | 2k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R206, R207, R209, R210 |
| 5 | 47k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R212, R215, R218, R219, R220 |
| 1 | 3k9 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R214 |
| 1 | 82 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R216 |
| 1 | 5k6 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R301 |
| 2 | 24k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R302, R310 |
| 4 | 10k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R304, R309, R311, R322 |
| 1 | 120k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R305 |
| 1 | 30k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R306 |
| 3 | 680R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R307, R308, R315 |
| 2 | 1k5 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R312, R313 |
| 1 | 470k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R314 |
| 1 | 100r | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R317 |
| 1 | 220k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R320 |
| 2 | 10M | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R323, R327 |
| 2 | 100k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R325, R326 |
| 1 | 10R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R328 |
VCF and VCO design files
The KiCad project lives in the promesoft/KicadJE-SteinerVCF repository on GitHub; these links point at the commit this page was built from.
VCF and VCO: common questions
How big is the VCF and VCO PCB?
The VCF and VCO measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the VCF and VCO?
182 components, from 89 distinct parts. The full bill of materials is listed on this page.
Where can I download the VCF and VCO design files?
From the promesoft/KicadJE-SteinerVCF repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the VCF and VCO design in my own project?
The repository has no license, so all rights stay with promesoft. Use it as a reference, and ask the author before reusing the design.
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