Service Magazine – July 1939, Vol. 8, No. 7. Original pre-WWII radio and television service publication featuring technical material on frequency modulation, early RCA television receivers, signal tracing, loudspeaker systems, condensers, test equipment, and radio repair. Published by Bryan Davis Publishing Co. Includes period diagrams and advertising, with attractive red-and-black cover artwork.
Service Magazine – July 1939, Vol. 8, No. 7. Original pre-WWII radio and television service publication featuring technical material on frequency modulation, early RCA television receivers, signal tracing, loudspeaker systems, condensers, test equipment, and radio repair. Published by Bryan Davis Publishing Co. Includes period diagrams and advertising, with attractive red-and-black cover artwork.
