To the picture gallery
is the directional finding version of the MAB. It is a portable transceiver, built in 1941 for Navy paratroupers.
Radio and power supply are built in a plywood housing. A so called, very rare "Skull Cap" contained the headphones.
Pix of the chassis of DAV and MAB (see picture gallery)
show that they are almost identical.
Directional finding antenna: (see picture gallery).
DAV is a "Squad Radio", a small hand held unit for very local communications. The collection shows all American Squad radios from their beginning (1941) to 1986. (Follow the links below)
You may also read the article by Alan Tasker :
"U.S. Military Portable Radios"