BD-74
Revision as of 00:11, 27 February 2014 by RadioNerds (talk | contribs) (Created page with "==Related files== ;{{pdf|BD-74_Preliminary_instructions.pdf|BD-74 Preliminary Instructions}} :Description and Operating instructions for the :Fire Control Communications ::S...")
Related files
BD-74 Preliminary Instructions
- Description and Operating instructions for the
- Fire Control Communications
- Switchboard
- BD-74
- Combinations A to F
- April 3, 1934