Our Museum's UC-78 Bamboo Bomber

Hello Bomber.
You might contact Jon Larson in the Seattle area. He might know or have some. His email is: .
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Additionally:
Research indicates that airplanes s/n 4974 and subsequent used the SCR-274-N command radio set; airplanes s/n 5074 and subsequent had one transmitter and one receiver deleted, but I have no details as to which xmtr/rcvr these were. These radios occasionally can be found on ebay.

Wikipedia has a good article on the SCR-274-N radio set, including photos of various installations:

en.wikipedia.org/wiki/AN/ARC-5#Typical_configuration

A Google search for "SCR-274-N" will doubtless turn up other on-line references.

Michael:

Hello Bomber.
Do you have a picture of what you are looking for? When you say back rack where is this rack?

Kent