EE-81

code practice equipment

Components

• BD-57 switchboard
• GN-33
• BB-29
• 22- J-38 keys
• 21- HS-16 headphones

References

• TR 1215-10 Code Practice Equipment, 1930

• TM 11-432 Code Practice Equipment Febr.2 1942

TM 11-432 Febr.1942