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Easy questions from a new electronics guy

Discussion in 'General Electronics Discussion' started by MarkDammit, Jan 9, 2013.

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  1. MarkDammit

    MarkDammit

    4
    0
    Jan 9, 2013
    Hey every one thanks in advance for advice and info. I'm putting together a distortion pedal kit and everything is in German so I am having trouble figuring some things out, I have a few questions:

    1 I have a bunch or little blue peanut capacitors, which way do I hold it to start reading the color stripes?

    2 On my schematic some of my capacitors have a "K" and some have an "R" on the end what do they mean?

    I guess that's it to start with any help? Thanks
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    11,307
    2,588
    Nov 17, 2011
    Welcome Mark.

    The color codes often makes sense only in one direction. Try both and see which one makes sense. Also here is a page that shows how to read the coclor codes. As shown on that page the color codes are possibly offset from the center to indicate the direction of reading.

    As to K and R: Could you post photos? these codes possibly indicate tolerance and are of no consequence in your application.

    If you have further trouble with the German description, I might be able to help out.

    Harald
     
  3. MarkDammit

    MarkDammit

    4
    0
    Jan 9, 2013
    Thanks Here's a jpeg.

    Thanks Harald, cool that your German cause you can read this stuff and just cool that your German. OK here's a jpeg of just some of the components I have including the schematic. I think I may have the wrong set of electronics parts but want to make sure. I included the capacitors that don't make sense to me or where they go. I know it may be asking a lot but if it is easy enough can you check if any of these fit on the schematic? I wrote out the color codes of three peanut capacitors and if it's it's not too much to ask can you decipher the three for me so I can use your number to figure out how to do the rest that are not in the picture? Thanks I don't mean to ask too much but I am very grateful for any information you send my way.
     

    Attached Files:

  4. Harald Kapp

    Harald Kapp Moderator Moderator

    11,307
    2,588
    Nov 17, 2011
    First answers:

    NC= Bauelemente werden nicht bestückt => component not used/assembled
    NC=100pF bei Schwingneigung ... => use this 100pF capacitor only if ringing or oscillation occurs.
    Use a housing with dimensions 120x93x31 mm³
    Place the potentiometers in the top part of the housing.
    Place input and output connectors to the left and right.
    Place the switch with some distance to the lower edge of the housing so the 9V battery can be placed behind it.

    Resistors you can check yourself . E.g.:
    yellow/purple/black/orange/brown = 470kOm
    If you try brown/orange/black/purple/yellow the calculator will tell you that it can't decipher the code.
    By the way: It is a good idea to have at least a simple multimeter at hand to check e.g. resistor values, diode oriantation and solder joints. Or to search short circuits.

    Capacitors:
    brown round disc 101 = 10*10pF=100pF (10= 10, 1=10^1)
    brown square discs 471 = 47*10pF=470pF (47=47, 1=10^1) = 470p on the PCB
    brown square discs 392 = 39*100pF= 3900pF=3.9nF (39=39, 2=10^2)
    white blocks .163 = probably 100nF/63V
    white blocks 47n = 47nF = 0.0047on the PCB
    white blocks 10n = 10nF = 10n on the PCB
    white blocks .1K63 = probably 100nF/63V
    Wima .1 = probably 100nF = 0.1 on the PCB

    What irks me is
    - there is a 3n3 capacitor on the PCB, but none of the capacitors in your photo seems to match that.

    Diode 1N4001: cathode (-) is where the withe ring is on the plastic housing.


    The PCB print is hard to read due to JPEG artifacts/low resolution. Next time please use higher res. pictures. And, if availabla, supply a circuit diagranm/schematic.

    I hope that helps you along.

    Haarld
     
  5. MarkDammit

    MarkDammit

    4
    0
    Jan 9, 2013
    Wow Thanks

    Wow thank you, this is exactly what I need, it will take me a little while to match up everything and thanks for the web site to decipher the peanut capacitors as well. Now that you looked at it I'm positive they gave me the wrong parts but in a way I'm glad because it will make me to learn more about this stuff. I'm sure I will have more questions but for now I'm trying to attach the PDF it has all the info on it. I actually have the original distortion pedal and often look inside of it to see if it is the same as what I am doing but some of the other stuff in the pdf doesn't even match up so you could imagine how hard it is for me as a beginner to try to put it all together. Thanks again.
     
  6. MarkDammit

    MarkDammit

    4
    0
    Jan 9, 2013
    clear pics

    Harald I tried to load a pdf but I don't think it took any way here are two larger pictures that might make the last more clear. Thanks again Mark.
     

    Attached Files:

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