WWII Frequency Meter
The U.S Army Frequency Meter developed by Signal Corps was used for adjusting aircraft radio transmitters and radio receivers.It is portable and completely self-contained instrument mainly to calibrate field radio receivers and transmitters on the field during WWII by the U.S Army.Special thanks to the amazing 3D Fast Track community for helping me throughout the process and Bartosz Buszman for providing me some useful tips!