Hi Earthtone,
As I don't have the equipment nor the talent to prove yay or nay on the more complex stuff I can only point out that the text books say do this yet real world equipment often varies greatly from the ideal.
The learning schools do tend to hide behind a basic set of ideal knowns which are often never challenged.
Even with my limited knowledge common sense tells me there are limitations to computer simulations and I only use it as a refference. So an hour on the sim and 4 hours in the shed testing every possible situation the circuit has to work under.
In my eagerness and blind ignorance my early attempts at building circuits failed so many times because I simply assumed the geeks knew more than myself. Hence a lot of my early projects that come under the heading of "I Read this in a book and it looks like a good idea" have simply ended up in the spare parts bin.
Heck I spent close to 10 years just trying to perfect a stand alone Spring Reverb unit. Yikes! So call me slow.
I Read the books, the Magizines, Stumbled my way into the computer age come internet and built a heck of a lot of those reverb circuits you see on line. Most of them work!,,, just don't expect dripping wet tank slapping reverb from a couple of text book opamp current drive tricks. winky
I tested and built many reverb designs (I've lost count) but I always came up short changed as none worked as well as I wanted. I finally had some breakthrough, One being that most opamp reverbs rely heavily on Current drive techniques and they are often dead pan boring.
Truth is those little transducers need big voltage to get them excited. So easy to understand why it took so long because the books are saturated (even obsessed) with I drive techniques failing to point out that without Voltage all the current drive in the world won't fix it.
Most of the teck savvy folks would easy see there are mistakes in my Reverb circuit but for my ability at that time it was a darn good effort and even with design flaws few Spring Reverbs would be able to deliver such massive depth with *close to zero noise insertion*.
I have no doubt that someone will now point me to some obscure rare *I drive rev circuit* that can deliver but I never found it. In the end is was easier to just employ the old fashioned rule of send it some extra voltage and it will soon wake up. And Wow! Did it ever wake up.
@ *Merlin* I appreciate you are trying to help and I thank you for that but I've learnt enough to know it's not always so straight forward. (I was just trying to point that out)
In this particular example (the original circuit posted) you may well be right. I do at times wish I had all the gear to setup a real world test in a more scientific way so we could all reap more from these discussions.
But heck it's a hobby and I'm not in a position to purchase all the $$equipment$$ needed to do such research.
LOL,, even if I did,, I'd probably not have the skill to explain it.
If my rantings do nothing other than help the novice to sometimes question the Status Quo then I feel I've done a positive thing.
Phil.
