Neutron Filter help

Started by LoonDawg, November 24, 2009, 07:27:35 PM

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LoonDawg

I am having problems wiring up my Neutron Filter. I have everything soldered to the PCB I bought but I don't know how to wire up the switches and pots. I hope some of you might have already built this pedal and might be able to help me. If anyone that has built this pedal could post wiring pics or anything, that would be very helpful.

here is a link to the PCB and there is a link to the .pdf on that page as well. Please help, thanks.


http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=112&Itemid=26

R.G.

Quote from: LoonDawg on November 24, 2009, 07:27:35 PM
here is a link to the PCB and there is a link to the .pdf on that page as well. Please help, thanks.
http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=112&Itemid=26
The diagrams on the project pdf linked on that page has a pretty straightforward wiring diagram. Did you see that?
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

LoonDawg

But I don't know how to wire up the switches, I guess I do know about the pots. I don't know which wires go to which pins for the 2 toggle switches, and the foot switch.

petemoore

  Notice the dotted lines, they relate to the 2 ''columns'' of lugs on a DPDT switch, which has 2 columns.
   1   4
   2   5
   3   6
  A DPDT is basically two switches with 1 toggle, the right column is a switch with 3 lugs, a pole in the middle [5], and a throw above and below [4 and 5]. For the right side [4,5 and 6] only one throw connects to the pole at a time, in switch state #1 the pole connects to a throw and not the other throw, the throw connections reverse when you set the switch to state #2.
  The left side column of lugs is identical, and switches simultanously, the dotted lines show that the switching assignments switch simultaneously.
  Use the DMM to get used to the map of switch and connections in various states.
  There are 2 DPDT switches.
  You can see the pole of the bypass [and other switches] as a node with an arrow.
  The 3 way switch for BP, LP and Highpass filters is a 1P3T [not exactly common, available though], the pole is 'effect' [output], each of the three throws chooses a filter type.
  I opted to use a 3pdt for true-bypass with LED switching.
  One half of a DPDT: Ua3 + input has a pole, one of the throws goes to R18 and R19, the other to throw goes to C9 and three resistors.
 
Convention creates following, following creates convention.

Strategy

I was perplexed by the wiring diagram but recently found this on the Geofex page: oh weird, frames...can't cut/paste specific URL!

www.geofex.com
click on "pcb layouts for download" on left menu bar near-ish the top
on this page you have A Neutron Wiring Diagram for the Schematic-Impaired.

I've etched a board and gone over the documentation but JUST found this and it seems super explanatory. Do you already have this diagram?

- Strategy
-----------------------------------------------------
www.strategymusic.com
www.community-library.net
https://soundcloud.com/strategydickow
https://twitter.com/STRATEGY_PaulD

LoonDawg

Thank you so much, I think the tips for the layout impaired is exactly what I need. Thank you all for your help. I am just starting out and still am trying to get my mind around all this stuff.

Strategy

I etched my own board, but initially when I was considering the project I found it through GGG. They should post a link to Geofex's convenient "illustrative" wiring diagram, it's great.
- Strategy
-----------------------------------------------------
www.strategymusic.com
www.community-library.net
https://soundcloud.com/strategydickow
https://twitter.com/STRATEGY_PaulD

claytushaywood

Quote from: R.G. on November 24, 2009, 08:01:06 PM
Quote from: LoonDawg on November 24, 2009, 07:27:35 PM
here is a link to the PCB and there is a link to the .pdf on that page as well. Please help, thanks.
http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=112&Itemid=26
The diagrams on the project pdf linked on that page has a pretty straightforward wiring diagram. Did you see that?


Is there any difference in sound between the original dual 9v-18v powering design and the single 9v with the converter layout?  I've looked around for the answer to this but cant seem to find it.  thanks a bunch for all the awesome projects!  cant wait to bounce around with some jerry fire on the mountain jams brahhh  :icon_cool: