Hello all. And merry Christmas to you all.

Trianco TRO 28/32 approx. 30 years old. Recent burner lock out problems identified as caused by no spark. [proved by lack of spark noise yet wet around nozzle.]
Set electrodes too close together as temporary fix. now achieving 11.9% CO2 and CO at 12ppm and 30.9% excess air.so all well when running but need to address weak spark issue. ps electrodes and leads not shorting out anywhere.

The ignition generator is the original May & Christie unit. [all other burner parts have been replaced over time].

My question: where do I get one? can anyone suggest an equivalent?

thanks in advance for replies