Look what a friend gave me. Need help to ID

[rob love]

Now for some more "new to me" oddities. The variometer has a different cord coming out of it. Was this a ham radio operators post war modification?

Aslo, the metal plate does not match up to the wooden block on the mount. The metal plate wants flathead screws while the wooden block is not indented to accept the plate.

Next photo is a lamp assembly, a smaller than usual dogbone, and a couple of little ceramic electronic items. Any help?
Third is one of the small dogbones next to the normal larger dogbone. I got about a half dozen of the regular dogbones, then some with the cord for the crystal calibrator, and the small ones with the cord for the crystal calibrator.

There was also one dogbone with a amperage meter spliced into it.