Aham, sorry, didn`t see the line, it looked to me like voltage divider... Have you listened to compare to some other kinds of compensation, there could be audible differences, or you just made it not to ring on square waves?
I would not use the word "compensation" - there is nothing to compensate for, the amp is stable without those caps. I put them in routinely, as a precaution, to limit the bandwidth (usually a flat freq. response up to about 100kHz provides a flat phase response to at least 20kHz which is what I aim for).
So, with or without those caps, no change in sound here.
Those amps which will turn into oscillators without some compensation scheme tend to show change in sound with different compensation types. So yes, in many cases careful approach and extensive testing in this area (or any other) pays dividends.
So, with or without those caps, no change in sound here.
Those amps which will turn into oscillators without some compensation scheme tend to show change in sound with different compensation types. So yes, in many cases careful approach and extensive testing in this area (or any other) pays dividends.
Nice little setup this. Did some simulation, and distortion figures are quite good: at 1V input, only 0.0009% with only 250mA Iq.
Would it be easy to use other laterals? How does one adopt the schematic for them?
Would it be easy to use other laterals? How does one adopt the schematic for them?
Laterals ate not many and they are all very similar so it will be just a simple matter of adjusting the bias and offset.
Well, I was thinking about ALF08NP16V5. Tried some simulations, but could not get distortion below 1%. It could very be the models though.. just as well as my lack of enough knowledge 😉
Ok, so any reason, why not to limit bandwidth with the input filter instead? Tried that? I`m just "comparing notes", to see does your experience matches mine 🙂 (I use similar circuit in my amp).
Cheers, Borko.
Input filter is OK too. Furthermore I think it would be more effective in environments with a lot of RF pollution. If the need arises I'd probably put both, carefully adjusted to cover every possibility, but right now i don't feel like it...
What amp is that ?
Aaah, I know - famous "the invisible one".
Very popular design - there's a lot of them on the forum ...
Very popular design - there's a lot of them on the forum ...
No, no. Just keep ir well hidden. Someone might see it and make a fortune out of it. That's the easiest way to get rich....
You tell me. I don't get it - you have a revolutionary design, so innovative and great that it has to be hidden from the world and yet you waste your time asking half-witted questions about simple amp, in the DIY forum.
Even if you did share the circuit, people aren't going to be standing in line to build or clone it. Unless it's a really simple design that can be built point-to-point, there's always the big obstacle of designing a PCB for it--something most people aren't going to attempt.
Also as you already know...what may be a great-sounding amplifier to you may not sound so good to others.
Again, you`re putting your words into my mouth, that has nothing to do with my choice. "half-witted questions"?? - wow cheers for you...
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Did I said why I wont send the schematic? Did I mentioned cloning or something else...? No.
PDFs from KiCad
Hello Itsmee,
KiCad will generate PDFs in color or b/w. I scale 8.5x11 to 11x17 and they print very nicely. In the schematic editor, click on File/Plot/Plot, make a few choices, then OK. I recently stumbled across it, entirely by accident.
Update: this is a reply to one of the first 4 or 5 messages in the thread, and not a reply to the recent conversation. Thought I'd mention it just in case.
Hello Itsmee,
KiCad will generate PDFs in color or b/w. I scale 8.5x11 to 11x17 and they print very nicely. In the schematic editor, click on File/Plot/Plot, make a few choices, then OK. I recently stumbled across it, entirely by accident.
Update: this is a reply to one of the first 4 or 5 messages in the thread, and not a reply to the recent conversation. Thought I'd mention it just in case.
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What elese should I call them - you didn't bother to read even the first post of the thread, neither you really looked into the schematic, and yet, you are asking already answered questions that should be taken seriously ? C'mon....