11-03-2021, 03:46 PM
(11-03-2021, 03:37 PM)solid Wrote: Erik, with 2 Hz beats you have variation of the amplitude of high frequency current. So, you will not see anything. You have to use at least one diode to recuperate 2 Hz current component. We are on vacations and I cannot realize your idea with beats (and diodes) now. You have to try yourself.
By the way there are a lot of similar headphone amplifiers nearly of the same price. I have chosen one just occasionally.
As for your blue coil, try to find or to make one with higher resistivity, about 10 Ohm. You may modify the existing one by adding much more turns.
The idea to use beats is really good!!
Thank you! I'll read up.
(btw, I just realised that the splitter jack shouldn't be there in the sketch, sorry)