Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Seems like it's always darkest before the dawn  8| I'm so ready to be done with this book I literally have like 25 pages to go and still slugging it out  :grr

Anyhow the assignment was to put together the circuit
IMG_20250307_211118377 (1).jpg

Then calculate the resonant frequency and adjust signal frequency until the voltage across the resistor is maximized.

So I did everything
IMG_20250307_210703302.jpg

and on the scope display the top is Vr and the bottom is Vin
IMG_20250307_210648434.jpg

So I had calculated 50.33 khz and ended up with this
IMG_20250307_210843860.jpg

So I really like how in this field the experiments closely match the calculations  <3)

So now I somewhat can start to comprehend how an old radio tuning capacitor can pull in a radio station but what bothers me is that is only one variable.  Or rather someone tuning in a station isn't adjusting a capacitor AND inductor.
Anyway don't want to open a can of worms  :loco

The radio tuning capacitor is the variable when it comes to 'selecting' a station frequency.
https://www.youtube.com/watch?v=5mE6v94zJ-A&t=1s

And ya knew it was coming  :loco

A parallel LCR circuit
IMG_20250309_103904999_HDR.jpg

IMG_20250309_103910645.jpg

It really helps to actually do stuff.  I wasn't getting the results I needed so I had to try and fix it.  Turned out I was using the 1k resistor that was called for previously when I fact a 100k resistor was needed.

 xP