Kris 200B RF linear amplifier.
A classic sweep tube linear amp from the early 1970's or so. Covers 6M-11M. Simple and rugged design. Was working when last used but has not been powered up in many years. The case has some staining of the paint on one side. Good for about 100 watts out with 5 Watts in.
A copy of the manual is here:
https://www.manualslib.com/manual/4374974/Kris-200-B.html