RCA Tube Handbook HB-3 Vol 5-6, Radio Corporation of America, Harrison, N.J., 1947. 6" By 9". Book Condition: Good. No Jacket. First Edition. 5" By 7 1/2". Transitting Tube Section: "this section contains data for certain RCA tubes employed in broadcast, television, and communication transmitters, electronic heaters, and other types of electronic equipment requiring tubes capable of handling appreciable power. Two ring binder measures 5 by 7 3/8 inches tall. Shipping wt. 1 lb 12 ozs. ed11