USAF parts id

[peter]

Hello Guys.
Can anyone ID these radio parts especially photos of them?

Aircraft radio transmitter type CBY 52209(mfd navy dept beuraue of ships)

Reciever dynamoter unit type cct 21531(navy bureau of ships)

us army signal corp Mounting FT-221-A(western electric New york)

us army signal corp dynamotor DM32A(western electric new york)

I received a collection of dataplates hence the reason for pics and or info on these parts.
Cheers

[Taylor Stevenson]

The "us army signal corp dynamotor DM32A(western electric new york)" is the dynamotor that fits on the BC-453-B and BC-454-B Recievers (I know for a fact that they were used in Stinson L-5G's and I think P-51's and some bombers but not entirely sure)