2 layers160 × 233.4 mm
VCO
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
129 partsMIT
2 layers160 × 100 mm
CLOCK
Desval27/FormantKOKnock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
- Size
- 160 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 135
- Nets
- 160
- Pads
- 416
- Tracks, vias
- 487, 29
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 13 May 2026
- Updated
- 28 Aug 2026
Overview
CLOCK is an open-source printed circuit board by Desval27, from the Desval27/FormantKO repository on GitHub, published under the MIT licence. It is a 2-layer board of 160 × 100 mm with 135 parts on 160 nets, routed with 487 tracks and 29 vias.
It is built around the TL082 and HEF4094BT. Its parts include 46 resistors, 39 connectors, 24 capacitors, 15 diodes and 8 ICs. It belongs with the audio and music and lEDs and displays boards of this library.
Main components
2README
MFOS/panels/ANALOG/README.mdParts
135| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | DUS | FormantKO:DUS_300 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D11, D13, D28, D29, D30, D31 |
| 8 | 100k | FormantKO:R_Axial_Horizontal_400 | R9, R26, R28, R32, R44, R45, R46, R47 |
| 7 | 10k | FormantKO:R_Axial_Horizontal_400 | R1, R5, R10, R11, R17, R20, R39 |
| 5 | 10n | FormantKO:C_Rect_200 | C1, C3, C7, C15, C16 |
| 4 | 1M | FormantKO:R_Axial_Horizontal_400 | R13, R14, R33, R38 |
| 4 | 1k | FormantKO:R_Axial_Horizontal_400 | R27, R29, R41, R42 |
| 4 | 1n | FormantKO:C_Rect_200 | C12, C13, C14, C18 |
| 4 | 20n | FormantKO:C_Rect_200 | C2, C4, C5, C6 |
| 4 | 220k | FormantKO:R_Axial_Horizontal_400 | R3, R7, R16, R21 |
| 4 | 47k | FormantKO:R_Axial_Horizontal_400 | R4, R8, R12, R40 |
| 4 | 680k | FormantKO:R_Axial_Horizontal_400 | R2, R6, R15, R22 |
| 3 | 40106 | FormantKO:DIP-14 | U1, U2, U6 |
| 2 | 100n | FormantKO:C_Rect_160 | C19, C24 |
| 2 | 10µ | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C20, C21 |
| 2 | 2M | FormantKO:R_Axial_Horizontal_400 | R31, R35 |
| 2 | 3k | FormantKO:R_Axial_Horizontal_400 | R24, R30 |
| 2 | 4k7 | FormantKO:R_Axial_Horizontal_400 | R34, R37 |
| 1 | 0 | FormantKO:Wire_2x01_General | J20 |
| 1 | 1 | FormantKO:Wire_2x01_General | J21 |
| 1 | 10 | FormantKO:Wire_2x01_General | J30 |
| 1 | 100p | FormantKO:C_Rect_200 | C17 |
| 1 | 10n | FormantKO:C_Rect_160 | C22 |
| 1 | 10nf | FormantKO:C_Rect_200 | C8 |
| 1 | 11 | FormantKO:Wire_2x01_General | J31 |
| 1 | 12 | FormantKO:Wire_2x01_General | J32 |
| 1 | 13 | FormantKO:Wire_2x01_General | J33 |
| 1 | 14 | FormantKO:Wire_2x01_General | J34 |
| 1 | 15 | FormantKO:Wire_2x01_General | J35 |
| 1 | 1µ | Capacitor_THT:CP_Radial_Tantal_D5.5mm_P2.50mm | C10 |
| 1 | 2 | FormantKO:Wire_2x01_General | J22 |
| 1 | 20k | FormantKO:R_Axial_Horizontal_400 | R18 |
| 1 | 20nf | FormantKO:C_Rect_160 | C23 |
| 1 | 20nf | FormantKO:C_Rect_200 | C9 |
| 1 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q1 |
| 1 | 3 | FormantKO:Wire_2x01_General | J23 |
| 1 | 3k9 | FormantKO:R_Axial_Horizontal_400 | R43 |
| 1 | 4 | FormantKO:Wire_2x01_General | J24 |
| 1 | 4013 | FormantKO:DIP-14 | U3 |
| 1 | 40193 | FormantKO:DIP-16 | U4 |
| 1 | 4514 | FormantKO:DIP-24W | U5 |
| 1 | 47p | FormantKO:C_Rect_160 | C11 |
| 1 | 4K7 | FormantKO:R_Axial_Horizontal_400 | R25 |
| 1 | 4M7 | FormantKO:R_Axial_Horizontal_400 | R36 |
| 1 | 5 | FormantKO:Wire_2x01_General | J25 |
| 1 | 6 | FormantKO:Wire_2x01_General | J26 |
| 1 | 6k2 | FormantKO:R_Axial_Horizontal_400 | R23 |
| 1 | 7 | FormantKO:Wire_2x01_General | J27 |
| 1 | 8 | FormantKO:Wire_2x01_General | J28 |
| 1 | 9 | FormantKO:Wire_2x01_General | J29 |
| 1 | CBUS | FormantKO:Wire_1x01_General | J37 |
| 1 | CKOUT | FormantKO:Wire_1x01_General | J2 |
| 1 | CLR | FormantKO:Wire_1x01_General | J5 |
| 1 | CardBracket | FormantKO:CardBracket | MH1 |
| 1 | GATE | FormantKO:Wire_1x01_General | J39 |
| 1 | GB | FormantKO:Wire_1x01_General | J36 |
| 1 | HEF4094B | FormantKO:DIP-16 | U8 |
| 1 | QA | FormantKO:Wire_1x01_General | J16 |
| 1 | QB | FormantKO:Wire_1x01_General | J17 |
| 1 | QC | FormantKO:Wire_1x01_General | J18 |
| 1 | QD | FormantKO:Wire_1x01_General | J19 |
| 1 | R19-1&2 | FormantKO:Wire_1x01_General | J14 |
| 1 | R19-3 | FormantKO:Wire_1x01_General | J15 |
| 1 | REV | FormantKO:Wire_1x01_General | J13 |
| 1 | RIN | FormantKO:Wire_1x01_General | J4 |
| 1 | RND | FormantKO:Wire_1x01_General | J6 |
| 1 | RST | FormantKO:Wire_1x01_General | J3 |
| 1 | STDN | FormantKO:Wire_1x01_General | J8 |
| 1 | STP | FormantKO:Wire_1x01_General | J11 |
| 1 | STRN | FormantKO:Wire_1x01_General | J10 |
| 1 | STUP | FormantKO:Wire_1x01_General | J7 |
| 1 | Sequencer Bus Connector | FormantKO:BusConnector_Full_Male_Horizontal | J1 |
| 1 | TL082 | FormantKO:DIP-8 | U7 |
| 1 | TRIG | FormantKO:Wire_1x01_General | J38 |
| 1 | TestPoint | FormantKO:KEYSTONE_5001 | TP1 |
| 1 | XCLK | FormantKO:Wire_1x01_General | J9 |
| 1 | XSTP | FormantKO:Wire_1x01_General | J12 |
Questions
How big is the CLOCK PCB?
It measures 160 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CLOCK use?
135 parts, built around the TL082 and HEF4094BT. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the CLOCK KiCad files?
From the Desval27/FormantKO repository on GitHub, at the commit this page was made from: the board is MFOS/modules/CLOCK/CLOCK.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CLOCK design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
More from Desval27/FormantKO
12- 2 layers160 × 233.4 mm
VCF 24
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
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Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
101 partsMIT - 2 layers160 × 100 mm
ANALOG
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
96 partsMIT - 2 layers160 × 100 mm
LFOs
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
94 partsMIT - 2 layers160 × 233.4 mm
RFM
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
93 partsMIT - 2 layers160 × 100 mm
VC LFOs
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
92 partsMIT - 2 layers160 × 100 mm
COM
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
85 partsMIT - 2 layers160 × 100 mm
ADSR
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
82 partsMIT - 2 layers160 × 100 mm
PHASE SHIFTER
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
79 partsMIT - 2 layers160 × 100 mm
EXPANDER
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
77 partsMIT - 2 layers160 × 100 mm
ADSR CONTROLLER
Desval27/FormantKO
Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.
77 partsMIT
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