Remember these? Long frame jacks like they used in the telephone switchboards... <http://elcodis.com/photos/17/12/171288/mt346.jpg> Used to be able to buy them surplus by the pound because they needed a screw to hold them in place. By the way, does anyone have one of those with the 0.206-210" hole? (For the old military microphone plugs.) Jeff-1.0 wa6fwi