You mean LT1252.
https://www.analog.com/media/en/tech...ets/lt1252.pdf
Yep, I would have gone the solid state route also. BUT, it depends on what type of power supply you have available.
Another video chip that's cool is the AD828 from Analog Devices:
https://www.analog.com/media/en/tech...eets/AD828.pdf
It has high output drive capability and flexible power requirements.
Some time ago, Motorola had an application note called "the last 10 percent" which discussed the issue of "flag waving."
The problem is that the horizontal AFC can't follow the pulses as the signal goes thru vertical sync which are broader than horizontal pulses,