I might be interested. Have you thought about making extensions for the smaller 
connector used to distribute GPIB in the 5000 series?

> On Aug 4, 2014, at 0:26, Mark Sims <hol...@hotmail.com> wrote:
> 
> I just finished laying out a small circuit board for building an extender 
> cable for the Tek TM500 series mainfames / modules.  Prototypes are off being 
> fab'd at OSHPARK.  Should be here in a couple of weeks.  It uses two 39/40 
> pin ribbon cables (all the power pins use two wires)... e.g.  IDE/PATA disk 
> drive cables.
> I know LOTs of us have and use these venerable old workhorse machines.  They 
> are well documented and easily maintained (particularly if you have extender 
> cables).  Is there any interest in purchasing a kit of all parts to build an 
> extender cable.   With a moderate amount of interest the price  looks like it 
> would be around $20 per kit plus shipping (probably around $6 for shipping in 
> the US for as many that can be stuffed in a small priority mail flat rate 
> box... most serious TM500 users will want 2 cables for the wide modules).  
> Kit cables would be 18-19" long.   TM500 extender cables have been selling on 
> Ebay for $150-$350!                         
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