Hello All……

This is the bible of vacuum tubes. It is the red cover RADIOTRON Designers Handbook, 4th Edition edited by F Langford-Smith, published by the Amalgamated Wireless Valve Company, Sydney Australia in 1953. The book was reproduced and distributed by RCA. Contains 1582 pages of vacuum tube knowledge and wisdom. This one is in VG condition with the only writing inside is the former owner’s name. Rarely seen these days. Price is $ 50.00 including postage and insurance. Payment preferred by Zelle, Postal Money Order, etc. If interested please email [email protected]