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How to create a Commodore PET IEEE Cable - Part 2


Aug 11, 2011
Stowmarket, UK
Let's start by obviously cutting the HP GPIB in half. You can always make another of course, but if it's short cut at one of the ends.
Strip the outer sheath back about 4.5cm and use a wire stripper to trim the ends of each wire in readyness for soldering.
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Using a multimeter, you can find pin 1,2,3 etc from the bundle of wires and match them up with the connectors on the back of the edge connector. This is the time consuming part, as each wire needs to be soldered up. There is a guide that can be followed here, but it's straight though (1 to 1, 2 to 2 etc) and quite simple. http://www.zimmers.net/cbmpics/cbm/PETx/petfaq.html
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I curled up the ground and put some heat shrink around it before soldering it as you can see to the top right of the picture.
It's worth running a pin to pin continuity check at this point to check your handywork.

The next bit is optional as I am my own critic for soldering ability. It's my choice to cover the soldered connectors with a layer of hot melt glue. This is to prevent movement, and the wires from coming loose from the edge connectors.
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and now on to part 3...