controlled obstruction lights, rolling door controls, signal lights, battery huts, and motor-operated hoist. Interior lighting was provided by standard reflectors at approximately 25 foot-candles and exterior lighting by vaporproof units. Stairway lighting was controlled by switches at base and top of towers. This electrical material was purchased with the towers as a packaged unit and was installed in the field. The original electrical demand for each of these towers was set at 15 kw plus 2 kw for battery charging. These loads had to be supplied by a dependable source with good voltage regulation characteristics. Accordingly two 50 kw diesel-generator units were installed in Station 64 on Piiraai, Bokonaarappu, and Teiteiripucchi. Site M. southeast of Runit was supplied from the main power plant on Runit. Control, signal, and telephone cables for tower operation entered the site terminal cabinets in Station 64 and thence to each tower. One telephone was provided in each battery hut and tower cab. Rolling doors were added to the towers on September 19, 1950. EG &G furnished the timers for operating these doors and requested that the electrical equipment panel be moved to the rear wall opposite the personnel door. EG&G advised that they would furnish the generator for operating doors on site M tower, Figure 5.11-11 shows a complete perspective of a 75 foot tower. 5-153