Thanks John, much appreciated.
I will resume work on the set this afternoon. I will be dragging the HMV out to borrow it's frame transformer, I also want to connect the Marconi to the CRT in the HMV to compare results.
I lashed in a new linearity pot last night, so that has helped somewhat.
I do have problems with the picture though. I know the CRT is not brilliant, but I don't believe that it is fully to blame for the current issues.
I have used the attenuator position on the set to tame the output from the Aurora, but cannot get a decent picture. The problems are that the picture is brighter toward the bottom, increasing either contrast or brightness will increase brightness from the centre of the picture with a noticeable white lines, as it is increased the lines move both up and down the screen and result in a brighter picture, but lacking in contrast and detail. any further advance on either contrast or brightness just whites out the picture.
I am sure there is still a problem on the RF deck. I will post some screen shots later today to illustrate the problem.
Mark