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parts_faq [2016/06/15 12:42]
psykhaze [What kind of switches do I need?]
parts_faq [2016/06/15 12:47] (current)
psykhaze [What is the correct polarity of the (resistor / capacitor / diode / etc)]
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 ====== Parts FAQ (Frequently Asked Questions) ====== ​ ====== Parts FAQ (Frequently Asked Questions) ====== ​
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 ===== What wattage resistors should I buy? ===== ===== What wattage resistors should I buy? =====
  
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 **Resistors can be installed in any direction**. **Resistors can be installed in any direction**.
  
-Smaller value capacitors (i.e. usually under 1 uF) generally have no polarity. ​ Anything above 1 uF is typically an electrolytic capacitor, and it will have a polarity marking. ​ Most often the "​-"​ side is marked with a big stripe, although sometimes it's the "​+"​ side that is marked. ​ (Strangely, the "​+"​ side seems to be marked on capacitors made in U.S.A.)+**Smaller value capacitors (i.e. usually under 1 uF) generally have no polarity**.  ​**Anything above 1 uF is typically an electrolytic capacitor, and it will have a polarity marking**.  Most often the "​-"​ side is marked with a big stripe, although sometimes it's the "​+"​ side that is marked. ​ (Strangely, the "​+"​ side seems to be marked on capacitors made in U.S.A.)
  
 **//Diodes absolutely must be installed in the right direction//​**. ​ Diodes have a stripe on the cathode side. **//Diodes absolutely must be installed in the right direction//​**. ​ Diodes have a stripe on the cathode side.
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 Trying to save money on wobbly cheap plastic faders, uh? You might hate yourself for that decision after six months of using your favorite new midi-toy. Consider that. Trying to save money on wobbly cheap plastic faders, uh? You might hate yourself for that decision after six months of using your favorite new midi-toy. Consider that.
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 ===== What type of crystal do I need? ===== ===== What type of crystal do I need? =====
  
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 [[Crystals and Oscillators]] [[Crystals and Oscillators]]
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 ===== I can't find a bridge rectifier to fit the PCB's. ===== ===== I can't find a bridge rectifier to fit the PCB's. =====
 You can substitute four 1N4001 (or any of the 1N400X series) for the bridge rectifier, they will handle more than enough current. You can substitute four 1N4001 (or any of the 1N400X series) for the bridge rectifier, they will handle more than enough current.
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 ===== What Power supply should I use, and how much power should it have? ===== ===== What Power supply should I use, and how much power should it have? =====
  
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 Yes, 1N4004 is a replacement for 1N4002, it's just a type for higher Voltages (100V for 1N4002 vs. 400V for 1N4004). Any 1N400X diode will work in place of any other 1N400X diode -WITH A SMALLER NUMBER- Do replace a 1N4002 with a 1N4004 Don't replace a 1N4004 with a 1N4002 Yes, 1N4004 is a replacement for 1N4002, it's just a type for higher Voltages (100V for 1N4002 vs. 400V for 1N4004). Any 1N400X diode will work in place of any other 1N400X diode -WITH A SMALLER NUMBER- Do replace a 1N4002 with a 1N4004 Don't replace a 1N4004 with a 1N4002
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 ===== PIC Stuff ===== ===== PIC Stuff =====
  
parts_faq.1465994562.txt.gz · Last modified: 2016/06/15 12:42 by psykhaze