Lol need more space

Did you check the rectifier output. I guess it wont work like that so why dont you just remove it and replace it with a DC source until you know what the issue is?

Iv never got such a rubbish from china!

I will try to mess with it more once I get some more down time. I transposed the schematic and i think it is complete, which took forever....and got me burned out. Hurz- the common clone is Chinese, but the circuit is apparently from Elektor Magazine from the 1970's. My main curiosity is in regards to the op amp configuration that appears to embed multiple op amps inside of the feedback loop of others. Most people seem to have trouble understanding the rectifier and negative rail generation on this circuit. I think I understand the op amp with the zener is a 11.2 volt reference but the exact relationship between the other two is beyond me, so far. It's an interesting topology, but I'll probably need to break out a laptop and plug it into a full size simulator where I can organize the circuit more clearly and break it down.

Even without the original schematics I can see some mistakes, so right wait a while and comeback with a check again.

I will request half the workspace for half the price of App!

I will outsource the labor for the code to cover my half

I think I got rid of most of the errors so far. I also realized the biggest problem. I can't get this sim to work with the zener referenced op amp because it is designed to have a different ground/negative power supply. How can I best replicate the design? Should I bias the node of the inverting input or the noninverting input of the op amp with the zener? As far as other corrections I've fixed a few connections, I changed the negative swing of the op amps to reflect the -9 volts on the lower rail. I don't understand the full parameters involved with setting up the transistors here but I simply found settings others used and copied them. I doubt this is correct given that one transistor is a power NPN, one is a medium power and the rest are general purpose. I also skipped the potentiometer marked RV1 and R10 because they are for zero offset null settings on the TL081. I've got to go do physical therapy at the moment, and I've only retraced and labeled about 3/4 of the circuit so far so there may still be some bad connections.

What about the tipp from @ViolationMad? This power supply doesn't help you to see the real problems. Actually its a separated project.

http://everycircuit.com/circuit/6666041903284224

I've created a few copies as I've tried different things. I've trashed several as I've made corrections, but the unlisted link is one of the ones I still have. I really wanted to understand the full circuit topology including the shut down via the negative rail collapse. I think I've rigged the main circuit to work by using much larger capacitors and removing the filter/bleed-off resistors in parallel with the filter capacitors. The chief problem appears to be the inability of this sim to handle 3 op amps where 1 of 3 has a different negative voltage threshold relative to the circuit. However, as seen on this main circuit, after forcing the 11.2 volt reference with an additional voltage source the simulation still fails. The software appears to have an issue as it calculates the current/voltage at the end for the transistors on the far right. I think this has to do with the design element for cutting off the output as soon as the negative rail collapses. I probably made a mistake or my poor understanding of the transistor settings is getting in the way.

Yes, like the first time. You dont listen what users say, you just continue in long lasting answers im afraid nobody reads. But you requesting more space, and in case you get it for free you just ignore the possibility. Strange.

FWIW, I read your long answers...

I have stopped reading in the middle, cuz it doesn't make sense to follow while the circuit is unreadable at this point. And because this circuit is a mess you dont see this 56kOhm 100pF nonsense at the lower opamp?

The original schematic is in the link in the description. If you can't read, don't waste my time by replying. I simply share something I find interesting, and think others might find interesting. If you don't find it interesting just ignore it. I'll find a solution. Like I've said all along I need more space where I can make sense of the whole circuit. I can't make more space here so I'll do that elsewhere. On another note, I find it interesting when people that are interested in electronics complain about reading. I imagine they must go crazy every time they download a Datasheet

Your strategie to analyse circuits is by far not the best. The motto must be "divide and conquer" have you ever heared about this?