Patch Cables

A project log for DEC H-500 Computer Lab Reproduction

Reproduce the Digital Computer Lab H-500, a training tool from the late 60's aimed at teaching people the basics of logic circuits.

Michael GardiMichael Gardi 05/28/2020 at 16:180 Comments

I started making the patch cables. 

I found some relatively inexpensive 2 mm banana plugs at about 56 cents CDN each. The wire is silicon based and very flexible. From Amazon:

The cables are colored coded by length and are based to the original H-500 except black was substituted for brown and there are no orange cables.  Here is what the original cables looked like (from

And here are the plugs that were used. If anyone knows what this type of plug is called and where one might find a supply I would be eternally grateful.

As I stated before the 2 mm banana plugs I'm using work great with the rivets so I'm fine with them for now.

Starting with 50 cables.