Hey
I have close to 100 pcs ECC81 to ECC83. Some used, some new but no box.
Now I want to test all the valves. First, I want to remove all the bad valves. Second, I want to look after balanced valves.
Now I have a question. Is there some standard test condistions to do that?
B+?
Current?
Vg?
Regards
Benny
I have close to 100 pcs ECC81 to ECC83. Some used, some new but no box.

Now I want to test all the valves. First, I want to remove all the bad valves. Second, I want to look after balanced valves.
Now I have a question. Is there some standard test condistions to do that?
B+?
Current?
Vg?
Regards
Benny