This circuit is from Motorola's Linear Interface ICs of 1993. The circuit can be powered by symmetrical 6 to 12 V voltages and for a stereo version, two channels must be built.
Texas Instruments' low power operational amplifiers OPAx196 can be found on Mouser Electronics....
Both the operational amplifier and the diodes admit equivalents in this circuit suggested by...
This FM transmitter has a high power thanks to a push-pull amplifier stage at the output. The coil...