THIS WHAT YOU'RE LOOKING FOR?- Dear Sergeant R. S. I., FSN 5305-014-0861 will get you a setscrew for any R-390 knob on the front panel except for the big kilocycle and megacycle change control knobs. The stock number's listed on Page 805 in Fed Cat C5305-IL-A, Vol 3 (Jul 66). MOUNT CLAMP I#-*" MOP UP EASY ON THESE CLAMPS... . YOU'LL SWEAT w GETTING NEW ONES! ta Dear Specialist H. L. G., - There's no FSN for the clamps. They're not maintenance items, so units have to be real careful about misplacing or abusing them. Replacement clamps have to be made by your support or depot. You might even get lucky and scrounge a matching clamp from your support's common hardware or by local purchase. 47 MWt-t