Welcome, don't be a stranger... I modified links to be "clickable" in the "Three Different 6888/6GY6 Transmitter" thread yesterday... Most all the info you need is there...
Note these transmitters are fairly robust(at least if properly tuned)... There have been issues where the RF overloads front end of nearby radios...
For a transmitter with a bit less output, look at the LM386 version, schematic is "up" in that thread...
viewtopic.php?f=12&t=193042Tom