90% of these can be found with a simple google search. Most of the parts were found easily through Mouser. The LED's were specified as green LED's in the reading, I know its a lot and the heatsinks are "Fischer sk104, 35mmx12.7mm, with a 25.4mm spacing for the solder pins". I just found this by searching for heatsinks and looking through 5 pages of results. I don't think they are available in the US. Terminal blocks, you might want to ask, they are a problem to find the right ones. I had some on hand that fit.
Hi Bonesthrower (can't help but think there is a story there somewhere...)
Many people on this forum start where you are at - me included, I am still an idiot, but over time some knowledge sticks.
I don't know of any comprehensive primer that will fit your needs, but here are a few suggestions:
- A very nice set of basic references: https://www.ibiblio.org/kuphaldt/electricCircuits/
- Here is a current site with lots of nice bite size lessons: https://www.allaboutcircuits.com/textbook/
As RickRay said, a search engine is your friend, e.g.
ics - integrated circuit, where the manufacturer fabricates sometimes complex devices on a tiny silicon wafer and packages it in a usable form.
DO-35, TO-92 - JEDEC specifications for device form factors, look on wikipedia.
TBLOCK, 0.2" pitch - terminal block where the pins are 0.2 inches apart; the terminal block is attached to the pcb to create a safe and secure connection for external wires
You have a wonderful learning journey in front of you. Take the time to enjoy it.
The Elliot Sound website also has lots of good information on basic circuits and electronics in general. I too am also not trained in this stuff, so I also am still learning.
Anyone else have input on this issue? I'm guessing this is a 54kHz oscillation. It is across the load and across the input. The input is a bench power supply, Rigol DP832. I checked the output of the Rigol without the SR connected and it is rock solid no noise on the output.
OK, I commented that because some time ago, just for fun, I tried the LF411 FET opamp, which is not a low noise chip, and simulated it in LTSpice. If anyone has used LTS I would ask you to try. The impedance curve I got, for +/-30 and +/-15v is one of the best, certainly better than the AD825 and AD817. Same thing with the LT1115. Neither of them is even mentioned by anyone.
As Jan said, when I uploaded my asc file, that some components I used were not available on every LTS, so I just ask: can anyone simulate those chips on their own superregulator simulation? And then comment on what are the results?
As Jan said, when I uploaded my asc file, that some components I used were not available on every LTS, so I just ask: can anyone simulate those chips on their own superregulator simulation? And then comment on what are the results?
The ones I mentioned are available in regular DIP8 body that can inserted on a socket. They are proven, have been there for many years.
I just asked anyone using LTS to simulate them and check my findings.
I've tried the ADA4523. Simulation noise is worst than LF411. Impedance too.
Thought they are very low too, better than 817 and 825.
Mouse doesn't stock them in the USA.
Thought they are very low too, better than 817 and 825.
Mouse doesn't stock them in the USA.
Good morning sorry for the inconvenience but I would like to ask you for some info considering that I'm a rookie and I don't want to make a mistake!!
When you say...
D5 change from LM329 to LM4040-10, is it necessary to replace only D5 or also D10?
Thank you
Giampiero
Good evening and sorry for the inconvenience, I am writing to you since you are online at the moment and since I still haven't been able to get the information I needed, I take the liberty of asking you. I take a comment that I found on the forum and ask the question.
The post: The following was made to set 24v
D5 change from LM329 to LM4040-10
24V - 10V = 14v
14/10 = "Z" = 1.4
"Z" multiplied by R7 or R14 value = R6/R13 value
for
R7/R14 = 1K
R6/R13 = 1.4K
D2(pos) and D7(neg): change the zener from 6.8v to a 12volt.....
Question: When you say...
D5 change from LM329 to LM4040-10, is it necessary to replace only D5 or also D10?
Thank you so much
NB: I know it has nothing to do with his position and I don't know if I'm doing it right but I'll insert it here ..
MY SR was set for 20V and I changed both D2, D7 and D5, D10 to 10V. Yes, D5 and D10 need to be the same, whatever they are. One is for positive rail, the other is for negative rail. You could safely use 12 volt in all 4 positions, it's half your output voltage.
Why use LM4040-10 when it is much worse than LM329, with resistors 1720/705 you get 24V or 1430/768 for 20V and with LM329 which has lower noise and lower dynamic impedance than LM4040.
In my 4A versions for Le Monstre I use an improved low noise LM329 and 1370/787 resistors for +/-19V.
In my 4A versions for Le Monstre I use an improved low noise LM329 and 1370/787 resistors for +/-19V.
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Buongiorno, ok perfetto, ho capito.
solo una domanda, a cosa ti riferisci quando dici .."con resistenze 1720/705..." quali sono i valori? scusa ma sono solo un principiante...
Grazie mille per l'aiuto
please post in English. Rules!
Good morning, ok perfect, I understand.
just one question, what are you referring to when you say .."with 1720/705 resistors..." what are the values? sorry but i'm just a rookie...
thanks a lot for the help🙄
Sorry and thank you very much!! It's early in the morning and still my mind is not fully awake..we need another coffee!!! Thanks again and Happy New Year!