Reply by Jan Panteltje November 27, 20152015-11-27
In The Ever lasting Chain Of Experiments The Next Project,
           ultrasonic anti-fouling for boats.

Part 14
 The transformer core I ordered from ebay arrived,
wound the new bigger transformer today:
 http://panteltje.com/pub/ultrasonic_antifouling_bigger_transformer_IMG_5179.JPG
that is 2 x 6 turns bifilair primary and 4 x 30 turns secondary.
That core should be good to 120 VA.

Maybe test in the weekend.
All other parts arrived, waterproof connectors, waterproof switches.