ATTENTION!: THIS IS A CD, NOT A PHYSICAL/PAPER BOOK!!! 500 Radio Wrinkles by Radio News 1926 PDF on CD (On the 91st page, the end of the word "degree" or the two letters "e" are not clearly visible, but can be inferred. That way, understanding is not disturbed. Overall the book is 100% complete.) CD Contents: 500 Radio Wrinkles compiled by the staff of Radio News (1926): 100 pages Format: PDF IN ZIP, Language: English "A Complete Collection and Assortment of Invaluable Hints for the Radio Enthusiast on CD." Table of contents of the book on the CD: Antennae Batteries Coil Mountings Condensers Crystal Detectors Inductances Lightning Protectors Loop Antennae Loud Speakers Miscellaneous Resistances Sockets Switches Transformers Vernier Dials COMPUTER REQUIREMENTS: This old book on CD on PDF in ZIP format after copy it to the computer or put it to the device will work on all PC, MAC Computers, tablets and mobile phones. The softwares needed are adobe reader/adobe reader app and WinZip program which in most cases are already loaded onto your computer/device, if not can be downloaded for free. It will be shipped by UPS/Air mail as a CD and money back guarantee! Windows and Mac compatable Important! Non US buyers please be sure that your State/Province/Region element is filled by you well either in your paypal account?s Account Settings/Account owner information/Address section or in your Bonanza account?s Account Dashboard/Settings/Account Info/Contact Address section when you make order because this is necessary in order that the order processing can be a little bit quicker! Thank you for your cooperation! Ringostarn Shipping is Free.