I think that is s8050 is NPN. Please check this FM transmitter circuit of s8050
https://ziddique.wordpress.com/2011/12/28/simplest-fm-transmitter/
Can it transmit more than 1km? Is it reliable circuit? Please check the circuit and tell me true please! Is both s8050 PNP and NPN in same size? How to know which is NPN?
Use a S8050 NPN transistor made by Weitron of Taiwan. I think Wing Shing of China has a translation problem with their datasheet.
Both transistors look the same.
It is easy to use a multimeter diode test see if an emitter-base or collector-base is NP or PN.
Ziddik is a member of this website or another electronics chat site.
His notes say its range is 1km when powered from 12V, not 3V. I have never seen a Chinese S8050 transistor.
He doesn't say the sensitivity of his FM radio but it must be very high. A cheap poor quality FM radio might receive the signal across the street or in the next room.
It is SIMPLE so it is
not reliable:
1) Its antenna connects directly to the tuned LC of the oscillator so its frequency changes when something moves toward or away from the antenna.
2) It does not have a voltage regulator so its frequency changes as the battery voltage runs down.
3) It sounds awful with no high audio frequencies. Like an AM radio, a telephone or your stereo with its treble tone control turned all the way down.
4) It is mono, not stereo.
5) It might cause interference with FM radio stations, police, ambulance, aircraft communications and guidance or TV. Then you will have BIG trouble from the RF cops. They might chop your head off or shoot you or both.
On Ziddik's website he shows a photo of a Canakit R171 FM transmitter kit that is not available anymore. It might have been the same simple lousy circuit as his.