I brought back from the farm my 7603 to see the physical items and layout involved, and also found I have a bunch of saved parts from junking a couple 7603s long ago. The R7613 transplant looks like it would have some big mechanical issues, especially in the length of the CRT shield and its mounting. I'm thinking now of trying to make another 7603 from the 7403N carcass, which should be fairly easy, IF there are enough 7603 parts still good. If not, then at least I'll have many of the items common between the 7603 and 7613 worked out, and will be able to see how much more is needed for the complete conversion.
Ed
