66 motorola contrast issue

[timmy]

yes this chassis does look over built and it does look like the hv is not regulating and this is the cause but for now it has a great picture even when certain scenes show the hv dips to 19kv but is still bright and clear and dont bloom. maybe because the crt is in great shape as it was replaced in december 1980. i did try another rectifier tube and hv reg tube no change . so one day maybe ill tackle it but for now it only goes on maybe 3 times a year.