: Look for files labeled as "Issue 1" and "Issue 2." These were often published in the 1980s or 90s and later digitized for the CHRS Digital Library.
: The "CHRS" prefix identifies the California Historical Radio Society , a non-profit dedicated to the preservation of early radio and broadcasting history. CHRS_-_The_Beast_Club_1-2.zip
: Detailed technical guides for complex tube radio circuitry. : Look for files labeled as "Issue 1" and "Issue 2