10-09-2018, 10:06 AM
Thanks for the tip regarding the capacitor in the sync circuit, sadly changing it hasn't helped or not much anyway. I'm going to check the video input as I'm not sure the amplifier is working at the corect input level as it is being fed with the video directly. Things are looking reasonable now anyway apart from the poor EHT regulation. It looks as if I'm going to dive into the line output compartment to check the valves if nothing else.
Isn't Frank's test card great! I'm going to see where the highest frequency grating is getting lost.
The line linearity and width controls are sitting comfortably in the mid area of their range, I have found the picture centering adjusters on the tube yolk.
There is a preset of some kind above the scan coils, I'm not sure what it is and I didnt notice any change in the picture when I turned it.
Isn't Frank's test card great! I'm going to see where the highest frequency grating is getting lost.
The line linearity and width controls are sitting comfortably in the mid area of their range, I have found the picture centering adjusters on the tube yolk.
There is a preset of some kind above the scan coils, I'm not sure what it is and I didnt notice any change in the picture when I turned it.
