Product code: Vintage National Radio Institute newest Course in Practical Radio, 28 Lesson books
They are well used course books, but these are cool as they are almost 100 years old, a great piece of Radio history. Course books are in good condition for there age. The binder shows extreme wear as shown in the pictures. Some lesson titles are listed. Lesson Text No.1 ELEMENTARY PRINCIPLES OF RADIO RECEPTION Lesson Text No.4 RADIO AND AUDIO FREQUENCY AMPLIFYING CIRCUITS Lesson Text No.5 AUDIO FREQUENCY AMPLIFIERS AND RADIO SPEAKERS Lesson Text No.6 RADIO BATTERIES, CHARGERS AND ELIMINATORS Lesson Text No.9 SIMPLE GRAPHS AND TYPES OF RADIO WAVES - there is not back page and the front page is loose. Lesson Text No.10 DETECTOR ACTION OF CRYSTAL AND VACUUM TUBE Lesson Text No.14 RADIO newest SOUND REPRODUCERS Lesson Text No.15 RECEIVING ANTENNAS AND THEIR INSTALLATION Lesson Text No.16 INDUCTANCE AND CONDENSER DESIGN Lesson Text No.18 RADIO BATTERIES THEIR CONSTRUCTION AND OPERATION.
They are well used course books, but these are cool as they are almost 100 years old, a great piece of Radio history. Course books are in good condition for there age. The binder shows extreme wear as shown in the pictures. Some lesson titles are listed. Lesson Text No.1 ELEMENTARY PRINCIPLES OF RADIO RECEPTION Lesson Text No.4 RADIO AND AUDIO FREQUENCY AMPLIFYING CIRCUITS Lesson Text No.5 AUDIO FREQUENCY AMPLIFIERS AND RADIO SPEAKERS Lesson Text No.6 RADIO BATTERIES, CHARGERS AND ELIMINATORS Lesson Text No.9 SIMPLE GRAPHS AND TYPES OF RADIO WAVES - there is not back page and the front page is loose. Lesson Text No.10 DETECTOR ACTION OF CRYSTAL AND VACUUM TUBE Lesson Text No.14 RADIO newest SOUND REPRODUCERS Lesson Text No.15 RECEIVING ANTENNAS AND THEIR INSTALLATION Lesson Text No.16 INDUCTANCE AND CONDENSER DESIGN Lesson Text No.18 RADIO BATTERIES THEIR CONSTRUCTION AND OPERATION.