Pages

▼

Monday, 30 April 2012

Boss OD1 14 Pin Version Stripboard Veroboard


a guitar overdrive, quite a nice one - it uses a quad op-amp this buffers the input and output signal before/after it's passed through the overdrive which makes your guitar quite responsive but not with over the top overdrive.

this is one someone asked me to make for them - they wanted the "14 pin version" and not the "8 Pin version" basically Boss decided to reissue this pedal without the buffer parts - most probably because the op-amp they used had a none standard pinout to a jellybean one like a LM324 and instead of redesigning the board to use a different quad they redesigned the board to use a dual op-amp, I'm not entirely sure what the thinking was there but here is my version which is a quad op-amp version to use a normal quad op-amp.

at

7 comments:

  1. Anonymous8 January 2014 at 10:20

    hi. thanks for this good job. Can you tell me what are the ref. about the D2 & D3 ? Thank you. Regards. Bruno (from FRANCE). Mail to : incimis@hotmail.fr

    ReplyDelete
  2. Mark V30 January 2014 at 20:46

    Maybe a dumb question but can you use the RC3403D with this layout? Is there a schematic that you used for this layout available? Also, could you show the pot wiring?


    Cheers

    ReplyDelete
    Replies
    1. DrStevenson30 January 2014 at 21:27

      when I did this - I just found the schematic on google - it was quite some time before I did this blog so I haven't got a clue where it is now.
      I can't absolutely confirm that you can use the RC3403 because the only one I had was a pre-used and highly abused one and it didn't sound right but when I put the equivalents in it - it worked well so I imagine you can use the RC3403 but it won't sound any different it will just cost more.

      with the pots the 1M/10K refers to the pot value in ohms and the number after those are the lugs they are wired to -

      eg "1M 1-2" is a 1 megohm pot with the board wired to lugs 1 and 2 on the pot

      Delete
  3. Will Traynor30 December 2014 at 21:55

    Hi, I'm wanting to build this pedal but increase the amount of gain available. Which component is responsible for the max gain? Thanks so much for the layout by the way!

    ReplyDelete
    Replies
    1. DrStevenson30 December 2014 at 23:15

      I did this one so long a go (that's why the layout is very spacious) I can't remember much but if my memory serves - if you increase R5 you should get more gain

      Delete
  4. Will Traynor8 January 2015 at 03:39

    which pot is volume and which is gain? Thanks again!

    ReplyDelete
    Replies
    1. DrStevenson15 January 2015 at 19:02

      there is a new version of this http://www.paulinthelab.com/2015/01/boss-od-1-original-rc3403-quad-op-amp.html
      the 1M pot is gain and the 10K pot is vol

      Delete