IC -> PCB -> IC Socket, how ?

Discussion in 'General Electronics Chat' started by bwack, Jul 8, 2015.

  1. bwack

    Thread Starter Member

    Nov 15, 2011
    Sorry for the cryptic title, but this is exactly what I want to do without having words for it, and this also makes it hard for me to make a good search term. I'm doing a PCB board that goes between the 40 pin DIP IC socket in the Commodore C64 and the IC that originally sits in that socket. How and what type of pins are the best to use ?

    I've seen three different ways of doing it so far.

    1. One and the most common one is the mounting of dual 20 pin rows next to the ic socket. I don't have the space available for that. Example: http://www.ebay.com/itm/Commodore-V...565?pt=LH_DefaultDomain_0&hash=item25a7de92ad ( I don't work for them)
    2. The other one was an unorthodox method of soldering socket and row pins together on both sides of the pcb. Pic is on a facebook group, but if you like to see I have the pic in my video below at about 4:00 in the video
    3. machined pins below soldered to holes that also have smd pads such that an ic on top can mounted there. Sort of 40 pin dip converted to smd..ish. I like this one because then I can have macined pins below and the IC on top doesn't have to be connected to all the ic-pins below (for example, i want the digital pins to go directly from ic on top to pins below, but i want two analog pins to be routed elsewhere). See the pic here for better explaination: http://www.students.tut.fi/~leinone3/ide/ide68k3bee.png and
    Original link: http://www.students.tut.fi/~leinone3/ide/ide68k.html

    My video asking for suggestions.
  2. john*michael


    Sep 18, 2014