|
Readability |
Strength |
Tone |
|||
|
1 |
unreadable |
1 |
barely perceptable |
1 |
extremely rough note |
|
2 |
barely readable |
2 |
very weak |
2 |
very rough ac |
|
3 |
readable with difficulty |
3 |
weak |
3 |
rough low pitched note |
|
4 |
practically no difficulty |
4 |
fair |
4 |
rough note |
|
5 |
perfect |
5 |
fairly good |
5 |
strong ripple |
|
|
|
6 |
good |
6 |
noticeable ripple |
|
|
|
7 |
moderately strong |
7 |
trace of ripple |
|
|
|
8 |
strong |
8 |
near perfect tone |
|
|
|
9 |
very strong |
9 |
perfect tone |