U.S. Army / Air Force Technical Manual TM 11-290 – RT-70/GRC Receiver-Transmitters (1957)

Offered here is an original U.S. military technical manual TM 11-290, covering field maintenance for Receiver-Transmitters RT-70/GRC and RT-70A/GRC, dated February 1957. This manual was issued jointly by the Departments of the Army and the Air Force and corresponds to Technical Order TO 31R2-2GRC-101.

This publication was used by military technicians for the maintenance and servicing of ground radio communication systems during the early Cold War period.

Details:

• Manual Number: TM 11-290
• Technical Order: TO 31R2-2GRC-101
• Date: February 1957
• Issued by: U.S. Army and U.S. Air Force
• Equipment: RT-70/GRC and RT-70A/GRC Receiver-Transmitters
• Type: Field Maintenance Manual

Historical Significance:

The RT-70/GRC series was part of the U.S. military’s ground radio communication systems used for field operations, base communications, and tactical networks. Manuals like this were essential for maintaining reliable communications equipment in the field.

A good addition for collectors of:

• Military radio and communications equipment
• Signal Corps and Cold War-era documentation
• Vintage electronics and field service manuals

Condition:

• Complete and intact
• Light age-related wear and toning
• Clean and readable
• No major damage observed

Please review photos for full condition details.

Collector Appeal:

• Original government-issued manual
• Covers field maintenance procedures and schematics
• Useful reference for restoration or display