My First PCB :D

Discussion in 'The Projects Forum' started by Art, Dec 1, 2013.

  1. Art

    Thread Starter Distinguished Member

    Sep 10, 2007
    It works!! :)


    Two channel PWM for 90 Volt pigtail neons.

    They are MOSFETs with zener built in. Well at least it worked..
    only one error which was a track I had to cut.
    I always used protoboards, next I'll have to graduate to PC design :D
  2. MaxHeadRoom


    Jul 18, 2013
    Try (free) KiCad ;)
  3. nerdegutta


    Dec 15, 2009
    Do you feel like jumping up and down?

    I did that when complicated boards work.
  4. Art

    Thread Starter Distinguished Member

    Sep 10, 2007
    Not sure about this one, but I am ready for moderately complicated one. I didn't say neat :)
    My first PCB was actually just a tagstrip, so I'm omitting that one.
    You're not the only one who's told me that.
    I've got a couple more hand drawn first. One of them I want half protoboard
    for something to use now, but finish part of later,
    so that will be a cool solution, a lot of dots with rails.

    Most of the dots in this one are in case.. Oops, I forgot something.
  5. MrChips


    Oct 2, 2009
    Not bad at all. Congratulations!

    I assume that this is a double sided PCB. If it is single sided, one would usually put components on the top side (non-copper) and traces on the bottom.

    When etching DIY PCBs it helps to leave as much copper on the board as possible. You can afford to make your traces much wider. You can also fill blank spaces with unetched copper. Doing this will speed up the etching process and make your etching solution go a bit farther.
  6. Art

    Thread Starter Distinguished Member

    Sep 10, 2007
    Thanks :)
    I learned, which I will be able to quickly forget, not to use the same IC socket
    you used to mark the PCB, because that ink messes up soldering big time.

    You're not the first person who's said that either.
    I always answer this way:


    You fix it then! :D
    Why would you scratch a nice desk with component legs?

    ps . I was also too quick, and have to do it again.
    It is possible to light whichever side of the neon you want,
    or both sides, but I can't do it on this board.
    Last edited: Dec 1, 2013
  7. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    Nice first PCB!

    Saved on drilling by putting everything on top huh? You'll fit right in, in a SMD future. ;)

    One suggestion; when you cut the PCB file all the edges smooth and rounded with a fine-tooth file. That way it won't shed fibreglass shards into your fingers and environment every time it's handled.
  8. Art

    Thread Starter Distinguished Member

    Sep 10, 2007
    I guess you saved me learning that one the hard way :)

    I've only just upgraded to this new gizmodgetry Tube Stereophonic that originally had a mains driven neon, so a photo etched PCB at it's front end would look rather silly at this point. The third MOSFET is for a relay switch to turn power on/off with software button.
    Got a bit to go on past projects first :) but it won't take another 25 yrs to make a photo one.