List.. In clearing up pending a QTH shift. I have cables and plugs used with Collins 17L-4 and 51-X2 tx/rx and the associated test box. Example is Amphenol DPA - 29C1-339 2 a male plug.. It would be too expensive to ship the heavy cable with plugs so I will cut them off. A pair of matching plugs $10 plus post. Cheers Pete VK3IZ AUSTRALIA