Great explanation. Thanks. I was watching this in the context of Valve/Tube guitar amps. It goes deeper than most explanations, and while i struggled in places all the info was there if you watch it back a few times. I think im right in saying it implies that a multi stage amplifier by virtue of the fact you have several coupling caps will naturaly create an Eq that ramps upwards? which is why guitar speakers and tone circuits etc tend to roll off a lot of high. It makes me wonder if the voltage difference or charge state has an effect.
The reactance curve also depends on the type of capacitor (ceramic, tantalum, etc.) and you can find charts on google or in datasheets, but yes a reactive component like a capacitor is like a mini-EQ because that's what a filter is, generally speaking. You can make careful choices of capacitors if you have a fixed frequency range (such as human hearing) to try to keep the reactances linear within that range, and also by minimizing how many capacitors you need (certainly don't need them between every stage with a dual-sided supply).
@@simplyput2796 thanks buddy. Yeah as far as i can tell for these applications you cant really go wrong getting some cheap but reputable Metalised film caps of the apropriate value. It seems odd that so many amps seem to use what look like ceramic caps for coupling. I guess its just because they are readily available in that 1-20nf range. I wonder if there are any caps which on their own will naturally allow 20-16k or so through and block either side. Next thing i am exploring is those old 2 in a can power filtering caps and what the "Max Ripple" written on the side means. Sourcing them in that format is very tricky and im not sure what sense there is to it.
Finally, someone that can explain this to us n00bs. You rock.
Awesome man, thanks for all the info. I found it really insightful and a helpful trying to figure out what value I should use as a coupling capacitor.
Thank you for explaining the value of R, the calculate the capacitance. That's often not clear.
Amazing explanation!, just starting in AC world, this helps so much, thanks!.
You are a great teacher. I hope that you are doing well.
damn good. i'm not there yet on learning but will come back to this
I think even understand resonant frequency of the cap, and why it changes behavior after..
Great explanation. Thanks. I was watching this in the context of Valve/Tube guitar amps. It goes deeper than most explanations, and while i struggled in places all the info was there if you watch it back a few times. I think im right in saying it implies that a multi stage amplifier by virtue of the fact you have several coupling caps will naturaly create an Eq that ramps upwards? which is why guitar speakers and tone circuits etc tend to roll off a lot of high.
It makes me wonder if the voltage difference or charge state has an effect.
The reactance curve also depends on the type of capacitor (ceramic, tantalum, etc.) and you can find charts on google or in datasheets, but yes a reactive component like a capacitor is like a mini-EQ because that's what a filter is, generally speaking. You can make careful choices of capacitors if you have a fixed frequency range (such as human hearing) to try to keep the reactances linear within that range, and also by minimizing how many capacitors you need (certainly don't need them between every stage with a dual-sided supply).
@@simplyput2796 thanks buddy. Yeah as far as i can tell for these applications you cant really go wrong getting some cheap but reputable Metalised film caps of the apropriate value. It seems odd that so many amps seem to use what look like ceramic caps for coupling. I guess its just because they are readily available in that 1-20nf range. I wonder if there are any caps which on their own will naturally allow 20-16k or so through and block either side. Next thing i am exploring is those old 2 in a can power filtering caps and what the "Max Ripple" written on the side means. Sourcing them in that format is very tricky and im not sure what sense there is to it.
very cool...but try to keep the search as simple as u can ...so that is can be visible to all...so the views increases...
THank you!!!
pity about the chopping/frames missing..cant watch it, ruined your vid again..