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For shuer brute torture the chamber boasts the shock test. This simulates gun recoil conditions which communication equipment must be able to withstand. The shock is applied by a heavy sledge hammer, which delivers a mighty blow against a heavy wooden board, on the front side of which the equipment under test is fastened. After twenty or more such blows are delivered to the operating eciuipment, it is checked to be sure that it has withstood this gruelling punishment. Still another ingenious instru- ment of "torture" designed by En- gineer York is his salt spray tester. Reduced to human terms, it is nothing more or less than continu- ous series of severe cases of sun- burn after ocean bathing. Tech- nically, it was designed to deter- mine whether paint finishes on etiuipment can withstand salt cor- rosion. The equipment is given a three-minute salt spray, followed by a three-minute hot air blast. This cycle i.s repeated 100 hours during which ultra-violet ray, rep- resenting the sun, is shining on the equipment. These are the feature attractions of RCA Victor's aptly called torture chamber. After a piece of equip- ment has passed through these gen- tle devices, and has survived, it is ready for quantity production and for use on the war front. "No battle condition," remarks York, "could hold a candle to such tortures." SALT SPRAY AND ULTRA-VIOLET RAYS PLAY ON NAVY COMMUNICATIONS EQUIPMENT IN THIS TEST (ABOVE) TO DETERMINE ITS CORROSION RE- SISTANCE. EQUIPMENT IS CHECKED FOR WATER-TIGHTNESS AFTER IT HAS BEEN SUBMERGED IN A LARGE TANK (BELOW) FDR A NUMBER OF HOURS. ^W. IS mi BECAUSE NAVY TELEPHONES MUST NOT FAIL AT CRUCIAL MOMENTS, THEY ARE TESTED (RIGHT) UNDER SIMULATED STORM CONDITIONS. IN THIS SCENE (below), SHIPBOARD COMMUNICATIONS EQUIPMENT IS UNDERGOING A 55- MILE-AN-HOUR BLAST FROM A WATER HOSE IN A SEA-WATER SPLASH TEST.