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FERNSEH · 12th Sep 2019, 8:07 pm

Hi Peter,
That's an excellent result. With regard to the reduced bandwidth caused by the CRT isolation transformer, why not try inserting a cathode follower between the video amplifier and the cathode of the CRT? A triode connected EF91 or EF80 can be used.

Adjustment of the line drive trimmer might effect a further improvement to the performance of the line output stage.

DFWB.

12th Sep 2019, 8:07 pm	#3
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Yet Another Bush TV22 Hi Peter, That's an excellent result. With regard to the reduced bandwidth caused by the CRT isolation transformer, why not try inserting a cathode follower between the video amplifier and the cathode of the CRT? A triode connected EF91 or EF80 can be used. Adjustment of the line drive trimmer might effect a further improvement to the performance of the line output stage. DFWB.