This T-368 VFO / Exciter Module, was made by Collins, and has a Form # A-148600 and P/N 015 0342 00 This unit is part of a spare parts group I have had for some time. This one looks to be in Good condition. It has an extra hole in the front panel, and all the tubes with the exception of the two on the PTO unit, have been removed. The plugs are all intact. I have not tested this unit and it is being sold as is as described for parts or repair.