Its for an Acom 1011
The tubes. Red to be matched for gain a d interelectrode capacitances. Matching is usually done in a test jig with low RF drive. Matched pairs are. It nearly as important as most people think depending on the amp design. What kind of amp are they for?
I just had a good look at the typos in my post. I guess I need more practice texting from my new phone especially from work at 4:30 in the morning.
It's okay C.K., we make allowances for 'noofies'... eh?