Amazon.com description: Product Description: If you're a collector of old radios, or if you simply want to get that old-time radio that's been sitting in the attic back into working order, this practical nuts-and-bolts book will show you how to do it the right way! You will be able to locate trouble spots, repair defective parts, or find out how to obtain replacements for obsolete tubes and other components. This well illustrated guide explains all the subtleties and nuances of a bygone technology. It provides vital guidance on troubleshooting old circuits and finding substitutes for obsolete, irreplaceable parts. There's also a handy guide to pinning down the cause of problems like weak and distorted reception, hum, whines and squeals, intermittent crackling, and all the other troubles that seem to plague old-fashioned radio equipment.