Yep, Ive got one too.
Ok, line oscillator - Check
Spark off PL38 anode - Check
Spark from EY51 anode - Check - bit feeble, but right frequency and colour
Spark from CRT anode - our survey says........
So, no EHT (no suprises there then)
LOPT does not look too clever.....
Over to tellyland experts......
Cheers
Sean