AII-IDHUGE EBAUB Are you about to boost the signal along the line with your AN/TCC-II telephone repeater? That's fine. While you're setting the controls in the Ji and J2 end assemblies, make certain the O-ring (preformed packing) is around the bottom of the controls access port cover. A missing O-ring (FSN 5330-290-8806) will let moisture in and corrosion'll be close behind. Then, whether the repeater's up a pole or on high ground, it'll make a bum booster. When it comes to spot painting elec- tronic test equipment, forget the Tom Sawyer method of whitewashing every- thing in sight. F'rinstance, with a TS-352()/U multimeter or TV-7()/U tube tester, touching 'em up with paint where the sets need it is supposed to head off rust and corrosion, not create a salvage problem. For touch up work your best bet's to use a brush and go sparingly with the paint. mI Bti i BKUS H FOR TOU1I-UP. If you have to use a spray can or gun make sure sensitive areas such as dials and air vents are taped. Same goes for nameplates, decals and other markings. Paint in the wrong'place can damage a set beyond repair. TB Sig 364 (Feb 64) with Change I has a lot of good tips on painting elec- tronic equipment. I nt AKu II I I I I I ' I