Radio Electronic Television Schools, Inc. (RETS) Practical Electronics and Television Servicing Manual. Copyright 1951 by Raymond Nauth. Manual's lessons start with Introduction to modern electronics and ends with camera tubes. It includes lessons on various circuits (e.g. TRF, Superhet), and components (e.g. tubes, capacitors.) Also covers record changers. Book is very thick and in very good condition. Black leatherette softcover is also in good condition, very little wear. Pages show some yellowing consistent with its vintage of 60 years. There are some pencil notations on some pages, probably by a student. Overall good condition for its age. A great gift for a collector, or a great addition to your vintage electronics manuals.