16-10-2017, 02:38 PM
Hi.
I ave now succeeded in uploading some new images to the old Aurora.
I now have 120/24P... 180/25P & 240/25P.
I have improved the linearity on the frame somewhat but it still isn't brilliant, i am thinking the frame TX isn't up to 25 Hz and no further improvement can be made, same with the Striations on 240 lines, usual tricks with damping hasn't really helped, as we know the line stage is in starvation mode and extra loading damps it down. I don't want to go that way as the Jelly pot Isn't designed for these low speeds and i'd rather ensure it doesn't fail, the early 900 series types are exceptionally rare and I'd like to keep it going. To be fair this is very much an experiment anyway.
You'll see the corseness of 120 lines, the picture is way off centre but again the line stage is struggling at under 4Khz.
120 Lines
180 Lines
240 Lines
I ave now succeeded in uploading some new images to the old Aurora.
I now have 120/24P... 180/25P & 240/25P.
I have improved the linearity on the frame somewhat but it still isn't brilliant, i am thinking the frame TX isn't up to 25 Hz and no further improvement can be made, same with the Striations on 240 lines, usual tricks with damping hasn't really helped, as we know the line stage is in starvation mode and extra loading damps it down. I don't want to go that way as the Jelly pot Isn't designed for these low speeds and i'd rather ensure it doesn't fail, the early 900 series types are exceptionally rare and I'd like to keep it going. To be fair this is very much an experiment anyway.
You'll see the corseness of 120 lines, the picture is way off centre but again the line stage is struggling at under 4Khz.
120 Lines
180 Lines
240 Lines
