No correction can be made w/o some repair. Since that costs thought you're able. I suggest try to find a replacement ASAP, maybe check your local Goodwill or S.Army shops for a used one. Also, if funds are real tight its possible and lucky to cruise on some streets on before trash day, what some people consider trash to dump older CRTs to the curb/trash bin area. Never know what you can find.
growing fainter and greyer by the day. We're short of funds at the moment,though we will be replacing it in about 3 to 6 months. Is there anything which can be done to increase the brightness and the contrast beyond what I've already done with the two knobs available? (They're both at max)