This is a chapter of a book researched and published by the Center for Cryptologic History describing magnetic tape recorders developed during the first two decades of AFSA/NSA.

NAVEDTRA 10251, Cryptologic Collection Equipments, was prepared by the Program Development Center Detachment at Corry Station, Pensacola FL for the Chief, Naval Education and Training in 1977. This chapter contains the Introduction & descriptions used in the document.

NAVEDTRA 10251, Cryptologic Collection Equipments, was prepared by the Program Development Center Detachment at Corry Station, Pensacola FL for the Chief, Naval Education and Training in 1977. This chapter describes Transmission Lines, Multicoupling Devices, and Antennas.

NAVEDTRA 10251, Cryptologic Collection Equipments, was prepared by the Program Development Center Detachment at Corry Station, Pensacola FL for the Chief, Naval Education and Training in 1977. This chapter describes Receivers.

NAVEDTRA 10251, Cryptologic Collection Equipments, was prepared by the Program Development Center Detachment at Corry Station, Pensacola FL for the Chief, Naval Education and Training in 1977. This chapter describes Demodulators, Rekeyers, and Demultiplexers.

NAVEDTRA 10251, Cryptologic Collection Equipments, was prepared by the Program Development Center Detachment at Corry Station, Pensacola FL for the Chief, Naval Education and Training in 1977. This chapter describes Teletypewriters.

NAVEDTRA 10251, Cryptologic Collection Equipments, was prepared by the Program Development Center Detachment at Corry Station, Pensacola FL for the Chief, Naval Education and Training in 1977. This chapter describes Magnetic Tape Recorders.

NAVEDTRA 10251, Cryptologic Collection Equipments, was prepared by the Program Development Center Detachment at Corry Station, Pensacola FL for the Chief, Naval Education and Training in 1977. This chapter describes Signal Analysis Equipment.

NAVEDTRA 10251, Cryptologic Collection Equipments, was prepared by the Program Development Center Detachment at Corry Station, Pensacola FL for the Chief, Naval Education and Training in 1977. This chapter describes Special Purpose Equipment.

This Rate Training Manual (RTM) and Nonresident Career Course (NRCC) form a self study package that will enable Cryptologic Technicians (Maintenance Branch) of the Regular Navy and Naval Reserve, to not only acquire the knowledge necessary to assist them in attaining advancement in rating; but of primary importance, it will increase their value to the Navy through the knowledge gained.

This training manual covers the naval standards (military requirements for chief petty officer.

This Training Manual (TRAMAN) and Nonresident Training Course (NRTC ) form a self-study package designed to enable you to prepare for advancement to Cryptologic Technician Maintenance Third Class (CTM3) . Satisfactory completion of the NRTC is necessary for advancement to Petty Officer Third Class (PO3) .

This book has been written to aid enlisted personnel of the United States Navy and Naval Reserve in preparing for advancement to the rates of Communications Technician, Technical Branch, 3 & 2.

This book has been written to aid enlisted personnel of the United States Navy and Naval Reserve in preparing for advancement to the rates of Communications Technician, Administrative Branch, 3 and 2.

This book has been written to aid enlisted personnel of the United
States Navy and Naval Reserve in preparing for advancement to the rates of Communications Technician, O Branch, 3 and 2.