Keep the red & blue wires leading out from the transformer you drew a picture of as far apart as you can, otherwise it looks ok.
The blue transformer you sent the pic of looks like an Lt44 and ought to work.
Moving the slug inside the transformer as you wind it up & down will 'peak' the output, ie the range will be highest when its set or tuned to the best point.
A very simple rf power meter made from a few comps would be handy here, I think theres one on Dick Cappels's website, just 'twiddle' the transformer core till the meter reads highest.
The blue transformer you sent the pic of looks like an Lt44 and ought to work.
Moving the slug inside the transformer as you wind it up & down will 'peak' the output, ie the range will be highest when its set or tuned to the best point.
A very simple rf power meter made from a few comps would be handy here, I think theres one on Dick Cappels's website, just 'twiddle' the transformer core till the meter reads highest.