AN~PRC-74

The AN/PRC-74 is a low-power, transistorized, SSB radio set used for voice and CW communications. It is designed primarily as a manpack set in areas where direct line of sight (LOS) communications are not possible. Except for the difference in the frequency range of the AN/PRC-74B and AN/PRC-74C, all models are essentially the same. Current tactical speech security equipment is not compatible with the AN/PRC-74; therefore, secure voice is not a mode of operation. Coder-Burst Transmission Group AN/GRA-71 can be used with all lettered models.

Additional Files

TM 11-5820-590-35

DS, GS, AND DEPOT MAINTENANCE MANUAL

RADIO SET

AN/PRC-74

JULY 1966

PRC-74B AND C

TM 11-5820-590-12-1

OPERATOR'S AND ORGANIZATIONAL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS)

RADIO SETS AN/PRC-74B (NSN 5820-00-935-0030)

AN/PRC-74C (NSN 5820-00-177-1641);

POWER SUPPLIES PP-4514/PRC-74 (NSN 5820-00-942-0821)

PP-4514A/PRC-74 (NSN 5820-00-177-4581)

BATTERY BOXES CY-6121/PRC-74 (NSN 5820-00-908-3127)

CY-6314/PRC-74 AND CY-6314A/PRC-74 (NSN 5820-00-156-3934)

March 1967

TM 11-5820-590-35-1

DIRECT SUPPORT, GENERAL SUPPORT, AND DEPOT MAINTENANCE MANUAL

INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS)

RADIO SETS AN/PRC-74B (NSN 5820-00-935-0030)

AN/PRC-74C (NSN 5820-00-177-1641);

POWER SUPPLIES PP-4514/PRC-74 (NSN 5820-00-942-0821)

PP-4514A/PRC-74 (NSN 5820-00-177-4581)

BATTERY BOXES CY-6121/PRC-74 (NSN 5820-00-908-3127)

CY-6314/PRC-74 AND CY-6314A/PRC-74 (NSN 5820-00-156-3934)

JULY 1968

PRC-74 Schematics

These are the missing schematics from the commonly found PRC-74B manual found on Google books

PRC-74 Instructions for adding Lower Sideband Support

Defines the process required to add Lower SSB (LSB) support for the PRC-74

James P Karlow