I ran across this oddball B&K 625 emission tube tester at a local resell shop. This model also contains a VOM and a CRT tester/rejuvenator that will test the older B&W tubes. The tube tester portion also has a test for grid emission.

The case is a little beat up and the handle has been replaced; but, I'm more interested in the operational aspect of the unit. The owner said it worked; but, in today's world, "worked" usually means that the power light came on.

I probably won't use the VOM or CRT tester that much; but, I still plan to get this one fully working again.

http://i538.photobucket.com/albums/ff341/radiotvnut/BK003_zps542b9184.jpg