One thing is sure, I'm certain there is
a solution to the timebase problem. Could it be that the designers of this set were happy to tolerate the bad frame linearity? Somehow, I don't think so.
LCD TVs? Just a waste of time. I've called it a day with those awful things. Folks just don't want to spend any money on repairs these days. I've no idea what the hourly rate is for a TV engineer these days, £10 , £15 and hour. anyone here got a clue?
So I'm looking for something else to do.
Some American colour sets certainly do get away with a triode frame output valve. Motorola model TS902A-03 employs a 6BL7 double triode. Not sure if this is the special double triode in which the two triodes has different characteristics. A low power triode for the blocking oscillator and a power triode for the output. A separate convergence amplifier is best solution but that increases the valve count.
The 6BL7 is a big beefy thing. 10watts pa.http://www.radiomuseum.org/tubes/tube_6bl7gt.html