[Coco] Gold Plating the Tin Card Edge Fingers of Old Coco Paks, MPIs, etc.

[George Ramsower]

 I forgot that part. Yeah, what I did was leave enough of the old traces to connect the grounding on the edges.... I think. 
 It was a long time ago.

  Danged memeory.
  ----- Original Message ----- 
  From: Gene Heskett 
  To: coco at maltedmedia.com 
  Sent: Saturday, April 13, 2013 9:18 PM
  Subject: Re: [Coco] Gold Plating the Tin Card Edge Fingers of Old Coco Paks,MPIs, etc.


  On Saturday 13 April 2013 22:13:01 George Ramsower did opine:

  > Kip,
  > 
  >  What I have done in the WAY past is cut a gold plated edge connector
  > off of a PC ckt board and soldered a short ribbon cable between it and
  > the original together, after cutting the original connector somewhat
  > shorter. This gives felexability and a new, gold plated edge connector
  > onto that device. It isn't easy to plug it into a Coco connector, but
  > it is doable. Re-tinning the old edge connectors is possible if all the
  > original copper is in place, enough to solder to.  I'ts a pain in the
  > petuty but, doable. Clean and polish the old edge connector very well
  > or the solder won't stick.
  > 
  > George

  Another way to do it, but be aware that much of the ground connection 
  between the coco and the MPI is in the ears sticking out of the mpi on each 
  side of the connector finger pattern, and which slide into the clips on 
  edge side of the coco's socket, and without that solid ground, you have 
  only one conductor in the ribbon cable connecting the two grounds together.  
  For that reason alone, I'd prefer the way I did it by soldering the edge 
  pattern from an old gold plated pc card to the mpi after sawing off a bit 
  of the original fingers.