• http://electronicsclub.info/transistors.htm# KnowLedge

A92

• http://www.onsemi.com/pub_link/Collateral/MPSA92-D.PDF

S9014 NPN :

• https://www.futurlec.com/Datasheet/Transistor/S9014.pdf
• http://i01.i.aliimg.com/img/pb/361/379/509/509379361_615.jpg
• http://mateusz.swietlicki.net/Post/raspberry-pi-as-ir-remote-lirc
• http://pdf.datasheetcatalog.com/datasheets/50/483179_DS.pdf

• https://cdn.sparkfun.com/datasheets/Components/General/P2N2222A-D.PDF

             /Collector 1              _
            /                       1 | \
- Base 2 --|                        2 |  |  
            \                       3 |_/
            _\| Emitter 3

• https://www.fairchildsemi.com/datasheets/PN/PN2222A.pdf

Opposite

@TaG: EleC LeD ElectroniquE RelaY