samuelmpuk
Newbie level 3
Hi I am trying to find out more about this MW radio transmitter, Miniature MW Transmitter
This is one I built on bread board, I would like to know why it has no resistor from Base to ground, and what type of amp are they using common emitter or common collector it does look like a common collector but I don't know how this LC circuit behaves when DC is pulsing through it. Does the LC circuit become treated as a normal resistor and would this resistance be the total impedance of the LC circuit at resonant frequency.
why does a 0.01uf capacitor get used I have found it's Xc 15 ohm, is it to match to the small antenna or just block DC and let RF through and if so how would I find out that with maths.
This is one I built on bread board, I would like to know why it has no resistor from Base to ground, and what type of amp are they using common emitter or common collector it does look like a common collector but I don't know how this LC circuit behaves when DC is pulsing through it. Does the LC circuit become treated as a normal resistor and would this resistance be the total impedance of the LC circuit at resonant frequency.
why does a 0.01uf capacitor get used I have found it's Xc 15 ohm, is it to match to the small antenna or just block DC and let RF through and if so how would I find out that with maths.