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Wavefolder version 2 - custom PCB
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| # Simple Wavefolder | ||
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| ## 4HP Eurorack Module | ||
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| <img src="Wavefolder.jpg" style="float:right"> | ||
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| ### Features | ||
| - Two separate wavefolding channels | ||
| - Channel 1 output is normalled to channel 2 input to give double the folding | ||
| - Front panel knobs control the degree of folding for each channel | ||
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| ### Notes | ||
| The amount of folding is controlled by the level of the input signal which is adjusted by an attenuator pot on the input. There are no CV inputs, but CV control of the folding can be done by running the input signal through a VCA. | ||
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| The circuit design is based on [Ken Stone's Simple Wave Folder](http://www.synthpanel.com/modules/cgs52_folder.html) and [yusynth's Metalizer](http://yusynth.net/Modular/EN/METALIZER/). | ||
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| This module is built using the [Delptronics Module Construction Set](https://delptronics.com/module-construction-set.php) which includes PCBs for the front panel controls and other components. The PCB layout file is just a guide showing how I placed the components on the Delptronics boards. (It's a bit of a mess - sorry!) | ||
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| Please note that I am a hobbyist, not a trained electronics engineer. No guarantees! | ||
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| ### Software Used | ||
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| [KiCad](https://www.kicad.org/) 6.0.0 | ||
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| <hr /><div><div style="float:left; padding-right:10px;"><a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons Licence" style="border-width:0; padding-top:8px;" src="https://i.creativecommons.org/l/by/4.0/88x31.png" /></a></div><div style="padding-left:10px;">© 2022 Len Popp<br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.</div></div> |
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| Ref,Qty,Value,Value2,Description,Datasheet,Manufacturer,ManuPartNum,Distributor1,DistributorPartNum1,DistributorPartLink1,Distributor2,DistributorPartNum2,DistributorPartLink2,Distributor3,DistributorPartNum3,DistributorPartLink3 | ||
| C1 C2,2,10U,25 VDC,Capacitor - Electrolytic - 12 V decoupling,https://industrial.panasonic.com/cdbs/www-data/pdf/RDF0000/ABA0000C1209.pdf,Panasonic,EEA-FC1E100,Mouser,667-EEA-FC1E100,https://www.mouser.ca/ProductDetail/Panasonic/EEA-FC1E100?qs=nLJruSqDb94EJwiFQJd4iw%3D%3D,,,,,, | ||
| C3 C4 C5 C6,4,100N,,Capacitor - Ceramic - IC decoupling,https://product.tdk.com/system/files/dam/doc/product/capacitor/ceramic/lead-mlcc/catalog/leadmlcc_halogenfree_fg_en.pdf,TDK,FG18X7R1H104KNT06,Mouser,810-FG18X7R1H104KNT6,https://www.mouser.ca/ProductDetail/810-FG18X7R1H104KNT6,,,,,, | ||
| C7 C8,2,680N,,Capacitor - Film,https://www.mouser.ca/datasheet/2/212/1/KEM_F3101_R82-1103738.pdf,KEMET,R82DC3680AA60K,Mouser,80-R82DC3680AA60K,https://www.mouser.ca/ProductDetail/?qs=Jv4FAWB%252B0HZwVuYoWb%2F8xA%3D%3D,,,,,, | ||
| C9 C10,2,10U,NPE,Capacitor - Non-polarized Electrolytic,https://www.mouser.ca/datasheet/2/315/ABA0000C1053-947510.pdf,Panasonic,ECE-A1EN100UI,Mouser,667-ECE-A1EN100UI,https://www.mouser.ca/ProductDetail/Panasonic/ECE-A1EN100UI?qs=0h1gzos03f36mGOUyzNXaA%3D%3D,,,,,, | ||
| D1 D2,2,MBR150,,Schottky rectifier diode,https://www.onsemi.com/pdf/datasheet/mbr150-d.pdf,On Semi,MBR150RLG,Mouser,863-MBR150RLG,https://www.mouser.ca/ProductDetail/ON-Semiconductor/MBR150RLG?qs=3JMERSakebpMUdfDTQP0Kw%3D%3D,,,,,, | ||
| H1,1,PCB_Delptronics_MCS_4HP,,Delptronics Module Construction Set - 4HP PCB & panel kit,https://delptronics.com/module-construction-set.php,Delptronics,,Delptronics,,https://delptronics.com/module-construction-set.php,synthCube,DELPMCSMSTR,https://synthcube.com/cart/delptronics-module-construction-set,Modular Addict,,https://modularaddict.com/module-construction-set-eurorack-prototype-development-platform-delptronics | ||
| J5 J6 J7 J8,4,PJ398,,"Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling), QingPu / Thonkiconn",http://www.qingpu-electronics.com/en/products/WQP-PJ398SM-362.html,QingPu / Thonk,PJ398SM / WQP518MA,Thonk,PJ398SM,https://www.thonk.co.uk/shop/thonkiconn/,SynthCube,WQP518MA,https://synthcube.com/cart/3-5mm-euro-jacks,Adafruit,4031,https://www.adafruit.com/product/4031 | ||
| Q1 Q3 Q5 Q7,4,2N3906,,"Small Signal PNP Transistor, -0.2A Ic, -40V Vce, TO-92",https://www.onsemi.com/pub/Collateral/2N3906-D.PDF,ON Semiconductor / Fairchild,2N3906TAR,Mouser,512-2N3906TAR,https://www.mouser.ca/ProductDetail/ON-Semiconductor-Fairchild/2N3906TAR?qs=VnWRSnLxLU2ypWvU5pgBbw%3D%3D,,,,,, | ||
| Q2 Q4 Q6 Q8,4,2N3904,,"Small Signal NPN Transistor, 0.2A Ic, 40V Vce, TO-92",https://www.onsemi.com/pub/Collateral/2N3903-D.PDF,Central Semiconductor,2N3904 PBFREE,Mouser,610-2N3904,https://www.mouser.ca/ProductDetail/Central-Semiconductor/2N3904-PBFREE?qs=u16ybLDytRZopNVvg2vJjA%3D%3D,,,,,, | ||
| R1 R2,2,499K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-25FTE52-499K,Mouser,603-MFR-25FTE52-499K,https://www.mouser.ca/ProductDetail/YAGEO/MFR-25FTE52-499K?qs=oAGoVhmvjhyZIgXtFNjfqg%3D%3D,,,,,, | ||
| R3 R4,2,18K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-12FTF52-18K,Mouser,603-MFR-12FTF52-18K,https://www.mouser.ca/ProductDetail/YAGEO/MFR-12FTF52-18K?qs=oAGoVhmvjhyrIv61YZaM%252Bw%3D%3D,,,,,, | ||
| R5 R6 R7 R8 R17 R18 R19 R20,8,15K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-12FTF52-15K,Mouser, 603-MFR-12FTF52-15K,https://www.mouser.ca/ProductDetail/YAGEO/MFR-12FTF52-15K?qs=oAGoVhmvjhxmMJFRswMR%252BA%3D%3D,,,,,, | ||
| R9 R10 R21 R22,4,10K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-12FRF52-10K,Mouser,603-MFR-12FRF5210K,https://www.mouser.ca/ProductDetail/YAGEO/MFR-12FRF52-10K?qs=19cKSROHwrBLAZVjkXsohw%3D%3D,,,,,, | ||
| R11 R12,2,120K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-12FTF52-120K,Mouser, 603-MFR-12FTF52-120K,https://www.mouser.ca/ProductDetail/YAGEO/MFR-12FTF52-120K?qs=oAGoVhmvjhymMraGPHdD1w%3D%3D,,,,,, | ||
| R13 R14,2,27K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-12FTF52-27K,Mouser,603-MFR-12FTF52-27K,https://www.mouser.ca/ProductDetail/603-MFR-12FTF52-27K,,,,,, | ||
| R15 R16,2,68K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-12FTF52-68K,Mouser,603-MFR-12FTF52-68K,https://www.mouser.ca/ProductDetail/YAGEO/MFR-12FTF52-68K?qs=oAGoVhmvjhyL5MsnBkXRfA%3D%3D,,,,,, | ||
| R23 R24,2,200K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-12FTF52-200K,Mouser,603-MFR-12FTF52-200K,https://www.mouser.ca/ProductDetail/YAGEO/MFR-12FTF52-200K?qs=oAGoVhmvjhzyXGTT6oqbfw%3D%3D,,,,,, | ||
| R25 R26,2,1K,"5%, 1/4 W",Resistor,https://www.mouser.ca/datasheet/2/427/ccf07-1762725.pdf,Vishay / Dale,CCF071K00JKE36,Mouser,71-CCF071K00JKE36,https://www.mouser.ca/ProductDetail/Vishay-Dale/CCF071K00JKE36?qs=sGAEpiMZZMu2MsBvHNoAnDvLCVdtd2rF,,,,,, | ||
| R27 R28 R29 R30,4,100K,"1%, 1/6 W",Resistor,https://www.mouser.ca/datasheet/2/447/Yageo_LR_MFR_1-1714151.pdf,YAGEO,MFR-12FTF52-100K,Mouser,603-MFR-12FTF52-100K,https://www.mouser.ca/ProductDetail/YAGEO/MFR-12FTF52-100K?qs=oAGoVhmvjhxn7uX6J9%2FOug%3D%3D,,,,,, | ||
| RV6 RV8,2,100K,LIN,Potentiometer,https://www.mouser.ca/datasheet/2/13/alpha_taiwan_08192019_RD901F-40-15R1-B(resistance_-1627810.pdf,Alpha,RD901F-40-15R1-B100K-00DL1,Thonk,Group_Pot_Alpha_6.35mm,https://www.thonk.co.uk/shop/alpha-9mm-pots/,Mouser,311-1940F-*,https://www.mouser.ca/c/passive-components/potentiometers-trimmers-rheostats/potentiometers/?q=RD901F&orientation=Vertical,SynthCube,9MMALPHAPOTMSTR,https://synthcube.com/cart/alpha-9mm-potentiometer-right-angle-pcb-mount-6-35mm-round-shaft | ||
| U1,1,TL074,,"Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14",http://www.ti.com/lit/ds/symlink/tl071.pdf,Texas Instruments,TL074BCN,Mouser,595-TL074BCN,https://www.mouser.ca/ProductDetail/?qs=vxEfx8VrU7BHurOY5iQdiA%3D%3D,,,,,, | ||
| U2,1,TL072,,"Dual Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8",https://www.ti.com/lit/ds/symlink/tl072b.pdf?ts=1628812694194,Texas Instruments,TL072BCP,Mouser,595-TL072BCP,https://www.mouser.ca/ProductDetail/Texas-Instruments/TL072BCP?qs=p6YqzpSxLIxmo8AyZLsP4g%3D%3D,,,,,, |
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