Paging/Talkback Amplifier Model TBA-20A plus 2 Catalogs, 3 Books

Paging/Talkback Amplifier Model TBA-20A plus 2 Catalogs, 3 Books written & published by Bogen Division of Lear Siegler Inc, Paramus, NJ. 1st Edition. Paperback. Size 4to (up to 12'' tall). Condition: VG. Manual edge chipped, overall content excellent. Catalogs in excellent condition. 48 Pgs. Manual illustrated with drawings and black and white photographs. 7 pages. 1980s, 17 pgs; late 1990s, 24 pgs catalogs, illustrated with color photographs. Description text copyright 2007 BooksForComfort. Item ID 15526.