Author Topic: Latest Build using a Chunk Chunk board  (Read 4312 times)

Chris McCullough

  • Diode Destroyer
  • *
  • Posts: 10
    • View Profile
    • Guitar Laboratory, LLC.
Latest Build using a Chunk Chunk board
« on: September 14, 2010, 03:31:32 PM »
Chris McCullough

jkokura

  • Global Moderator
  • Electron Doctor
  • *****
  • Posts: 7554
  • Jacob - SK, Canada
    • View Profile
    • JMK PCBs
Re: Latest Build using a Chunk Chunk board
« Reply #1 on: September 14, 2010, 04:12:06 PM »
Cool image. I like the total disdain for 'naming' the pedal. Naming the functions in really small print is enough, and it looks mighty cool. Is the graphic from a cartoon you're a fan of?

Also, I hope your knobs are the 1/2" variety.

Jacob
JMK Pedals - Custom Pedal Creations
JMK PCBs *New Website*
pedal company - youtube - facebook - Used Pedals

Chris McCullough

  • Diode Destroyer
  • *
  • Posts: 10
    • View Profile
    • Guitar Laboratory, LLC.
Re: Latest Build using a Chunk Chunk board
« Reply #2 on: September 14, 2010, 04:19:02 PM »
I ordered 1/2" green knobs for it.
Chris McCullough

pauloman80

  • Stompbox Star
  • ***
  • Posts: 192
    • View Profile
Re: Latest Build using a Chunk Chunk board
« Reply #3 on: September 14, 2010, 07:40:56 PM »
That is rad, man.  Nicely done.  I'm going to have to give those water slide decals a try.
--------------------------------------------------
Regards,
pauloman80

Chris McCullough

  • Diode Destroyer
  • *
  • Posts: 10
    • View Profile
    • Guitar Laboratory, LLC.
Re: Latest Build using a Chunk Chunk board
« Reply #4 on: September 14, 2010, 08:47:56 PM »
Thanks guys.
Chris McCullough

Chris McCullough

  • Diode Destroyer
  • *
  • Posts: 10
    • View Profile
    • Guitar Laboratory, LLC.
Re: Latest Build using a Chunk Chunk board
« Reply #5 on: September 14, 2010, 08:51:24 PM »
My son likes the cartoon Invader Zim. Zim is the one on the pedal.
Chris McCullough

gtr2

  • Electron Doctor
  • *****
  • Posts: 4788
  • Josh
    • View Profile
    • 1776 effects
Re: Latest Build using a Chunk Chunk board
« Reply #6 on: September 14, 2010, 09:01:22 PM »
Well executed design!  How about some gut shots :'(
1776 EFFECTS STORE     
Contract PCB designer

eniacmike

  • Solder Ninja
  • ****
  • Posts: 372
  • Mike
    • View Profile
Re: Latest Build using a Chunk Chunk board
« Reply #7 on: September 15, 2010, 08:17:35 AM »
can you explain your bias process for the trim pots? I have tried a few different ways and I still can't get a good sound out.

Chris McCullough

  • Diode Destroyer
  • *
  • Posts: 10
    • View Profile
    • Guitar Laboratory, LLC.
Re: Latest Build using a Chunk Chunk board
« Reply #8 on: September 15, 2010, 10:02:30 AM »
Whats it doing? I followed the destructions and then tweaked by ear.
Chris McCullough

eniacmike

  • Solder Ninja
  • ****
  • Posts: 372
  • Mike
    • View Profile
Re: Latest Build using a Chunk Chunk board
« Reply #9 on: September 15, 2010, 11:12:10 AM »
oscillating like crazy, I either get completely clean sound or terrible oscillating crappy tone distorted sound. I tried 4.5v biasing and then adjusting from there, 1v biasing adjusting from there, pretty much every possible option and I can't get a good sound.

Chris McCullough

  • Diode Destroyer
  • *
  • Posts: 10
    • View Profile
    • Guitar Laboratory, LLC.
Re: Latest Build using a Chunk Chunk board
« Reply #10 on: September 16, 2010, 04:09:33 PM »
Make sure you have good solder joints. Make sure you don't any caps or resistors mixed up on the board. It is easy to get mixed up while putting this one together.
Chris McCullough

madbean

  • Administrator
  • Electron Doctor
  • *****
  • Posts: 9584
  • Brian
    • View Profile
    • madbeanpedals
Re: Latest Build using a Chunk Chunk board
« Reply #11 on: September 16, 2010, 04:50:30 PM »
Did you sub any different values for your pots, mike?
No matter where you go, there I am. Watching you.

eniacmike

  • Solder Ninja
  • ****
  • Posts: 372
  • Mike
    • View Profile
Re: Latest Build using a Chunk Chunk board
« Reply #12 on: September 16, 2010, 06:33:13 PM »
no subs on the entire build.
I used the b5k potentiometer with a 5k1 resistor across lugs 3 and 1 for the mid control as it says in the instructions.


eniacmike

  • Solder Ninja
  • ****
  • Posts: 372
  • Mike
    • View Profile
Re: Latest Build using a Chunk Chunk board
« Reply #13 on: September 16, 2010, 06:35:53 PM »
I did just find 1n4001 instead of 1n4004 maybe that is my problem?

Chris McCullough

  • Diode Destroyer
  • *
  • Posts: 10
    • View Profile
    • Guitar Laboratory, LLC.
Re: Latest Build using a Chunk Chunk board
« Reply #14 on: September 16, 2010, 06:44:57 PM »
I used a 1N4007 and it worked just fine.
Chris McCullough