GR-4

Components

• BD-70 switchboard
• BE-51 outpost unit
• BE-59 cap.
• EE-8
• AR-8 protector
• HS-30
• TD-1 chest set
• CD-425
• BB-29 storage battery With ST-21 shoulder strap

References

• TM 11-439 Flash Ranging Set GR-4-A (1 November 1944); 58 pages

• File:SIG 7-GR-4.pdf

• File:SIG 8-GR-4.pdf

• File:SIG 7 8 GR-4.pdf