Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I get it. The first RF transistor compresses the top of the RF waveform each time it gets near cutoff and the even harmonics distortion causes the modulation to be rectified a little that is amplified by the audio second transistor.
You can't get 1k headphones. More likely 16 ohm or 32 ohm and that's why 100k is needed.
Then since the transistor is biased near saturation it rectifies the RF like an amplified diode
You can't get 1k headphones. More likely 16 ohm or 32 ohm and that's why 100k is needed.
This topic has veered way off the initial question, with lots of pseudo science and Hocus Pocus, but if the original question is still of interest, and you're willing to handle some fairly technical discussion, then have a look at Ben Tongue's crystal radio analysis. He deals with the whole impedance matching issue from the antenna, through the detector diode, to the headphones.Experimenting with crystal radio, I've reach a point where I'm not able to understand the explanations about antenna and tune coils coupling, and impedance matching.
i decided to stop feeding the troll. there's a lot of really good info to be found by looking at radio textbooks from around 1915-1920.This thread seems to have gone cold.
JimB