Supply bulletins. 11-100-14. Serviceability standards for lamp equipment PH-62. PH-63, PH-207, PH-207A. PH-208, PH-209. PH-211. PH-210, PH-216A, PH-217, PH-251, PH-421, PH-422. PH-218, and PH-219; May 1945.