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peter10tv · 10th Sep 2019, 9:43 pm

Hi
I did not need to do any alteration to either the frame or line time bases, as the scan was adequate. The only electrical alterations were to the focus circuitry and to supply the 8.5v for the tube heater, this evaluated by the .3amp current drawn. The tube neck gantry was moved to its extreme adjustment to get the best results.
It may be the focus circuitry could be left original if the focus coil could be moved to a better place along the neck of the tube, or maybe a different value of winding? More experimentation on this may be required.
I look upon this as a temporary measure as I am persuaded by John's praise of the TA10 which I hope someday to find! Perhaps two....as I also have a fully working VRC52a which has as soft TA10.
Best wishes
Peter

10th Sep 2019, 9:43 pm	#4
peter10tv Pentode Join Date: Oct 2008 Location: Essex, UK. Posts: 108	Re: Emiscope 3/16 Crt Hi I did not need to do any alteration to either the frame or line time bases, as the scan was adequate. The only electrical alterations were to the focus circuitry and to supply the 8.5v for the tube heater, this evaluated by the .3amp current drawn. The tube neck gantry was moved to its extreme adjustment to get the best results. It may be the focus circuitry could be left original if the focus coil could be moved to a better place along the neck of the tube, or maybe a different value of winding? More experimentation on this may be required. I look upon this as a temporary measure as I am persuaded by John's praise of the TA10 which I hope someday to find! Perhaps two....as I also have a fully working VRC52a which has as soft TA10. Best wishes Peter