Wiring question (easy)

Discussion in 'General Electronics Chat' started by davidGG, Dec 27, 2012.

  1. davidGG

    Thread Starter Member

    Dec 22, 2012
    51
    0
    I was looking at this schematic,
    http://www.pcbheaven.com/wikipages/images/frequencymeasuring_1261824864.png
    and I noticed the two grounds. Where would I physically connect the ground? The battery negative is my guess but I'm not sure if I can have multiple wires coming out/going in to a single terminal. Rather be safe then sorry.

    Also, why does the capacitor symbol have an upward curve on the bottom line?

    Thank you.
     
  2. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,045
    3,813
    Yes, the ground goes to the negative battery terminal. all grounds are combined to the same point. The ground symbol is often used in schematics to clear up the clutter that would be required to run the ground wire to each point showing ground.

    the capacitor has a curve on one side to show you it is a polarized capacitor - usually an electrolytic (can-type) capacitor. Make sure the black strip on the side showing negative is to the less positive side of your circuit when you install it.

    Cheers
     
    davidGG likes this.
Loading...