GaffarEEE
Member level 2
hi friends,
we have experimented these following circuit in lab and found 108Mhz without any LC resonance we thougth the wires that we experimented on breadboard would make any LC resonance but a great surprise to us that when we have made a pcb board and we have found the same result: 108Mhz and if we change the biasing resistance frequency vary.Finally we have used a old fm radio to test it.It is a FM wave coming from this BJT and the capacitor connected to its two point collector to emittor.Now we thing it would be useful to make my thesis about this amazing characteristics of BJT but we cant find anything inside BJT 2n2222.
i think someone has already encountered about this amazing nature of BJT.
please advise me.
we have experimented these following circuit in lab and found 108Mhz without any LC resonance we thougth the wires that we experimented on breadboard would make any LC resonance but a great surprise to us that when we have made a pcb board and we have found the same result: 108Mhz and if we change the biasing resistance frequency vary.Finally we have used a old fm radio to test it.It is a FM wave coming from this BJT and the capacitor connected to its two point collector to emittor.Now we thing it would be useful to make my thesis about this amazing characteristics of BJT but we cant find anything inside BJT 2n2222.
i think someone has already encountered about this amazing nature of BJT.
please advise me.