More FM Trans

 https://www.instructables.com/The-Simplest-FM-Transmitter-Without-Coilinductor/

https://www.instructables.com/How-to-Make-FM-Transmitter/

http://electronics-diy.com/electronic_schematic.php?id=1001

https://www.electroschematics.com/long-range-fm-transmitter/

https://www.electroschematics.com/fm-transmitter-usb/

https://www.instructables.com/The-Simplest-FM-Transmitter-Without-Coilinductor/

T1 = T2 = T3 = T4 = BF199

T5 = 2N3866, 2N4427 or 2SC1970 for 1Watt / 2SC1971, BLX65, BLY81, KT920A or 2N3553 for 1.5 to 2W power.

L1 = 5 turns / 0.6mm / 4mm silvered copper

L2 = 6 turns / 0.8mm / 6mm enamelled copper

L3 = 3 turns / 1mm / 7mm silvered copper

L4 = 6 turns / 1mm / 6mm enamelled copper

L5 = 4 turns / 1mm / 7mm silvered copper

Use silvered copper for L3 and L5 if you want to obtain better characteristics.