Well Al, many thanks for your sparking history. A big variety of designs there.
I salute your perseverance in the face of all your difficulties and health problems. Especially not having a workshop.
I do have one outside but do most of my work on the kitchen table.....I'm not allowed to use the dining room table as you do.
I wonder why you had to have such a heavy single transformer when MOT's
can be stacked in series and parallel to get high volts and amps as required?
Each one is not too heavy if handled as units.
But I daresay I am missing something here...…….as is usual with me.
I did follow your progress when you had a thread about it here on this forum.
I wonder what the photographic project is? Best not describe it here as we will get in the Mods bad books for going off topic,
So back to Bach with sparks !...…….my break out is cured with many coats of varnish at the top of the coil, on the wire connection to the brass break out point.
My rig is in a small conservatory without curtains so hope to take some pics of my spark tonight when it gets dark. It certainly makes a racket when square wave modulated ! No AC interference with my DC supply.