Mutant Bassdrum v1.05 DIY BoM
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hexinverter.net Mutant Bassdrum Eurorack v1.05 DIY Bill of Materials
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Part QtyDesignatorsNote/s
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ICs/misc SEMICONDUCTORS:
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TL074 quad opamp2IC3, IC8
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TL072 dual opamp4 IC4, IC7, IC1, IC2
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LM78L05 5V, 100mA voltage regulator1IC9
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2N3904 NPN transistor7Q2, Q3, Q4, Q6, Q8, Q9, Q11
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2N3906 PNP transistor7Q1, Q5, Q7, Q10, Q12, Q13, Q14
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The use of IC sockets for all integrated circuits is HIGHLY recommended
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NSL32-SR3 analogue optocoupler (vactrol)3LDR.DECAY, LDR.DIST, LDR.PITCHI do NOT recommend substituting for this. If you must roll your own or use a substitute, make sure the response time is FAST (ie: 50ms decay time or less). The SR3 suffix on the NSL32 part indicates its speed rating. You must use this suffix for adequate performance. The base NSL32 (non SR3) will not work well!
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THIS PART IS NOT FOUND AT MOUSER! Get it at Allied Electronics (North America) or Farnell (Europe). They have thousands in stock! http://www.alliedelec.com/search/productdetail.aspx?SKU=70136790
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DIODES:
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1N4148 small signal diode4D3, D1, D2, D41N914 or any other small signal diode should work fine as well
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LEDs:
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Orange 3mm diffused LED (or pick your own colour!)1Bassdrum indicator LEDhttp://www.taydaelectronics.com/led-3mm-orange.html
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Purple, White, Blue or Green diffused LED2Distortion LEDs -- should be around 3V drop if you plan on changing colours. Green should work fine!http://www.taydaelectronics.com/led-3mm-green.html
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THESE ARE NOT FOUND AT MOUSER. Mouser has a VERY poor selection of LEDs :(
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CAPACITORS (16V or greater rating):
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220uF electrolytic3C17, C18, C29
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33uF electrolytic1C1
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1uF electrolytic5C7, C9, C6, C14, C25
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10nF1C12
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15nF3C3, C4, C11
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33nF1C2
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47nF1C15
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100nF (0.1uF)7C10, C6, C10, C19, C20, C24, C5
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220pF5C16, C8, C21, C22, C23
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RESISTORS (1/4W, 1%, metal film):
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47R1R56
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100R1R20
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820R3R7, R64, R74
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1k6R18, R28, R30, R35, R12, R69
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2k5R4, R6, R25, R63, R72
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2.7k1R26
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4.7k4R50, R19, R41, R47
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8.2k1R23
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10k9R17, R44, R54, R58, R59, R70, R49, R52, R53
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22k3R14, R15, R48
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47k6R2, R13, R24, R39, R61, R67
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100k16R1, R9, R21, R27, R45, R65, R68, R73, R90, R40, R42, R43, R46, R51, R55, R60
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150k3R5, R29, R71
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200k3R32, R22, R66
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220k2R8, R31
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300k1R3
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470k2R10, R34
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1M5R11, R16, R33, R62, R57
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HARDWARE/ETC:
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M3 machine screws (M3x25mm)4For connecting the boards together
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12mm PCB spacers4For connecting the boards together
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40pin male .1" breakaway header1http://www.taydaelectronics.com/40-pin-2-54-mm-single-row-pin-header-strip.html
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10pin long pin female header2http://www.taydaelectronics.com/stackable-header-10-pins-2-54mm.html
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2pin .1" jumper1Accent select jumperhttp://www.taydaelectronics.com/mini-jumper-2-54mm-gold-plated-closed-cover.html
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Eurorack power connector (or 2x5 .1" male header)1Power connector
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Eurorack power cable1http://erthenvar.com/store/eurodiy/power/cable1016
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POTENTIOMETERS:
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Vertical PCB Mount 100kA potentiometers3BD.LVL, DIST.IN.LVL, TONEhttp://www.taydaelectronics.com/100k-ohm-logarithmic-taper-potentiometer-round-shaft-pcb-9mm.html
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Vertical PCB Mount 100kB potentiometers4DECAY, DIST.AMT, PITCH, PITCH.CV.AMThttp://www.taydaelectronics.com/100k-ohm-linear-taper-potentiometer-round-shaft-pcb-9mm.html
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NOTE about pots: the control PCB is designed to use either BI pots w/ d shafts (kind of hard to find) or the more easily obtainable Alpha 9mm round-shaft style. You'll need to find some knobs of your choosing for the Alphas. Davies 1900H work great and come in a variety of colours!Other pots: BI Tech. P0915N-FC15BR10K -- there may be others that work as well. CHECK THE FOOTPRINT BEFORE SUBSTITUTING!
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100k cermet style trim potentiometer1T.DECAYMouser: 67WR100KLF
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KNOBS:
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Davies 1900H knobs (for Alpha 9mm pots)7http://www.taydaelectronics.com/knob-davies-1900h-clone-orange.html
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JACKS:Alternative for d-shaft pots: Mouser part 450-4760
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3.5mm vertical mount jacks8All jacksMouser part number 16PJ138 (Kobiconn) -- there are also substitutes that match this pinout but check first! :)
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