If nothing else gets found earlier, I will get a book out of the Library Stores once my exams are over - I think there was a basic description of it in there. If anyone else has it and wants to check, it was
Television Theory and Practice by Reyner.
My intention is to try and turn a Woollies tenner-TV into a monitor for standards between 30 and 625 lines. I guess it may be a bit of a task!
Sam