OK so I have a question about this unit, since the original 6E5 tube was DOA (open filiment) I'm going to have to replace the original 6E5 tube with another eye tube and the only semi functional eye tubes I've got (that produces a bright green glow) is a 6N5 and a couple of 6U5/6G5 tubes and the 6N5 eye tube I have is the brightest of all of the eye tubes I have.
My question is, could I use a 6N5 eye tube in this unit and this unit still work?
Any help with this matter would be appreciated.
