http://www.diyaudio.com/forums/showthread.php?postid=517000#post517000
I must not have a "demand" for designing something. I may just do it because I feel it's interesting. Noone here demanded a SMD Gainclone but they requested some other type of design as you can read. I wasn't interested in that. I was interested in SMD technology and a design using "normal" parts. I made the design and built a prototype. Then I surely made my work public, everything! Then I first checked the interest of group buy which you surely remember. This interest was pretty OK for being a SMD project. Ok I said, I will have it for a spin. Two people have helped my in building excellent prototypes and the reviews are also nice to hear. From that I started to collect money and later ordered pcb's. Unfortunately we didn't reach any high number so making kits became rather unattractive.
All "customers have got their pcb's now or the following week. I'm pretty sure that they will think this was a very good initiative when they all have a working amp.
I was the first to introduce SMD but I can't really claim that every other person must ask me about permission to use SMD or even my concept which is a BrianGT/Peter Daniel blueprint in disguise.
I would appreciate if the level of thing comes to the right values.
"Huge", "profit", "commercial", "thousands", those who use those words and really mean it also have probably never made anything like I, BrianGT, digi01, ALW, and few more have done. As SY says, it's pizza money at the most.
My ideas, my advices posted here and elsewhere is free to use for any purpose, high commercial or for private use. You don't even have to give me any credit. People here feel obviously different about this issue but this is my standpoint and I mean it.
Some people here point at other noses and says: This is not DIY or this is not the right way of DIY. I say some want to do everyting by themselves of ecomonical, selfsatisfactional or other reasons and some people get excited to buy a real good (very often!), design/pcb for pocket change. Some of you will never finish a design so a pcb can be done and other work faster. It seems that the raised voices come from those who work slow.
Why does Pedja design anything? Why do I design? Good question.
I must not have a "demand" for designing something. I may just do it because I feel it's interesting. Noone here demanded a SMD Gainclone but they requested some other type of design as you can read. I wasn't interested in that. I was interested in SMD technology and a design using "normal" parts. I made the design and built a prototype. Then I surely made my work public, everything! Then I first checked the interest of group buy which you surely remember. This interest was pretty OK for being a SMD project. Ok I said, I will have it for a spin. Two people have helped my in building excellent prototypes and the reviews are also nice to hear. From that I started to collect money and later ordered pcb's. Unfortunately we didn't reach any high number so making kits became rather unattractive.
All "customers have got their pcb's now or the following week. I'm pretty sure that they will think this was a very good initiative when they all have a working amp.
I was the first to introduce SMD but I can't really claim that every other person must ask me about permission to use SMD or even my concept which is a BrianGT/Peter Daniel blueprint in disguise.
I would appreciate if the level of thing comes to the right values.
"Huge", "profit", "commercial", "thousands", those who use those words and really mean it also have probably never made anything like I, BrianGT, digi01, ALW, and few more have done. As SY says, it's pizza money at the most.
My ideas, my advices posted here and elsewhere is free to use for any purpose, high commercial or for private use. You don't even have to give me any credit. People here feel obviously different about this issue but this is my standpoint and I mean it.
Some people here point at other noses and says: This is not DIY or this is not the right way of DIY. I say some want to do everyting by themselves of ecomonical, selfsatisfactional or other reasons and some people get excited to buy a real good (very often!), design/pcb for pocket change. Some of you will never finish a design so a pcb can be done and other work faster. It seems that the raised voices come from those who work slow.
peranders said:
No, of course, you are not.
OK, tell me for what purpose these advices can be used?
http://gainclone.com/phpBB2/search.php?search_author=peranders
However, note that I haven’t originally mentioned you because of your board but because you suggested the man to make more comprehensive offer than he did. Anyhow, once your project will have interest for 100 or 300+ samples, you are free to give it to digi01 to make the money of it. I don’t care if he’ll sell them for $4, $40 or $400. Will you do that? I bet that you won't.
Pedja
If I wasn't the first of making a SMD buffered Gainclone, could you enlighten me who was?
Let me come back when it is about those numbers you are mentioning but everything is free to use except for the gerber files. My text and my artwork are copyrighted but not the content. You don't have to ask for any permission to use my ideas but I don't mind if you do.
Let me come back when it is about those numbers you are mentioning but everything is free to use except for the gerber files. My text and my artwork are copyrighted but not the content. You don't have to ask for any permission to use my ideas but I don't mind if you do.
Hehe, it is not what you’ve said above… You’ve said above that you were the first who introduced SMD in GC, which is certainly not the case.peranders said:
Speaking about this, can you contribute in a way, for example, reporting differences between “normal” and SMD buffered GCs?
Pedja
Yah, right.
The size of this "hobby" wouldn't even buy a small pizza. This could be the world's smallest hobby. What are they going to make on me? Three dollars?
PCB's are good for people like me... Newbs. It greatly increases the chances that the first project is successful... then the real addiction starts.
It's perfect because we haven't figured out a lot of this stuff yet. The thought of "dead bug" construction may not appeal to everybody. Secondly, the investment in time and materials to make a circuit board is "too much" for the new guys.
Thanks to all those guys willing to share there designs!
I'll guess you don't have any proof of your claim but this doesn't matter. _I_ haven't seen anything like my design before.Pedja said:
About your last request, I recommend to download the documention and compare the differences. I'll guess that the differences aren't huge because mention how many different ways you can implement a non-inverting buffer, basicly four main combinations. I have chosen one of those.
Proof for what? That the people used SMD in GCs before?peranders said:
Speaking in "like" terms, the things will have different shape, of course.
Take the same configurations, whichever you want. What are the sonic differences between the one employing usual (standard, audiophile, choose what you want) and the other employing SMD parts? I am sorry but I am not in a will to go through the long texts with possibility to find that you haven’t provided this answer.
Pedja
I'm afraid but I don't have the budget to build several amps just for comparing purposes. At the moment I'm pretty pleased with "normal" parts and if folks use normal parts they will have a working amp. I leave this tweaking to the builders.Pedja said:
Both Walter and Anders which have two working amps are very pleased to this "simple" sound with "simple" parts. If you want to use other type of parts, please do go ahead. I have nothing against that.
Pizza money? Really?
A simple search on google by "SMD gainclone":
http://www.google.pt/search?hl=pt-PT&q=smd+gainclone&btnG=Pesquisar&meta=
Produces lots of results, P-A is everywhere.😎
http://www.ampchipdiy.com/phpBB2/viewtopic.php?p=5310&sid=9d41c8fc69463ae41af80fd434c73d96
http://www.audiosold.com/forum/view_topic.php?id=90&forum_id=17
And much more...
Pizza money, P-A?
It seams that this is already your way of living.
A simple search on google by "SMD gainclone":
http://www.google.pt/search?hl=pt-PT&q=smd+gainclone&btnG=Pesquisar&meta=
Produces lots of results, P-A is everywhere.😎
http://www.ampchipdiy.com/phpBB2/viewtopic.php?p=5310&sid=9d41c8fc69463ae41af80fd434c73d96
http://www.audiosold.com/forum/view_topic.php?id=90&forum_id=17
And much more...
Pizza money, P-A?
It seams that this is already your way of living.
peranders said:
Where have I heard this before?
A very typical post from who is selling a kit on diyaudio.com
I have posted in a couple of places but most forums except for hififorum.nu and diyaudio.com are pretty sleepy and I'm not talking about interest for my stuff only.
Some people here must have "weird" (not normal) parts because others have said so. Only a very few have really tested this for themselves. I let people use what they want but they will only get limited support if they choose non-recommended part but I don't forbid anyobe to use Black Gate caps, Caddock resistors etc.
Carlos, where do you see my kits? I don't sell any, too much work and economical risks and gives you nothing in return except for consumed time.
Some people here must have "weird" (not normal) parts because others have said so. Only a very few have really tested this for themselves. I let people use what they want but they will only get limited support if they choose non-recommended part but I don't forbid anyobe to use Black Gate caps, Caddock resistors etc.
Carlos, where do you see my kits? I don't sell any, too much work and economical risks and gives you nothing in return except for consumed time.
peranders said:
P-A, you are confusing matters.
If you decide to use SMD components that's up to you, it's your decision.
You are still using the same design, SMD or not.
This discussion started because of Pedja's schematic of the LM338 PSU, quite different.
But if you really want to know, you are not the first to use SMD components with LM power op-amp chips.
Does Jeff Rowland ring a bell?😀
Using different parts will get you different properties. You can't deny that. If not why test different ones?carlosfm said:
Jeff Rowland isn't a SMD Gainclone exactly from what I know. I'm fully aware of that there are SMD LM3886 based commercial products.
miniKrell
Is this forum only for gainclones?
"Chip Amps" was a very well chosen name.
My amps are very far from similarity to a Gaincard, I don't call'em "Gainclone", I don't like that.
If you were only talking GC, as on page 1 of the LM3875 datasheet, you may be right.
peranders said:
Is this forum only for gainclones?
"Chip Amps" was a very well chosen name.
My amps are very far from similarity to a Gaincard, I don't call'em "Gainclone", I don't like that.
If you were only talking GC, as on page 1 of the LM3875 datasheet, you may be right.
Now, I am confused... Did not you say that you don't have the budget to make comparisons? So, how could you know about that?peranders said:
http://www.diyaudio.com/forums/showthread.php?postid=328482#post328482
I am sure more can be found yet in this forum. Out of here, I know the guy who designed the board for non-inv GC using all SMD resistors a few months ago (I know this since I took part in this with a few advices). BTW, even my current GC project board has the footprint for the SMD feedback resistor.
Pedja
I am sure more can be found yet in this forum. Out of here, I know the guy who designed the board for non-inv GC using all SMD resistors a few months ago (I know this since I took part in this with a few advices). BTW, even my current GC project board has the footprint for the SMD feedback resistor.
Pedja
Craig Fraser has written that DIYers can use SMD components for for LM1875 gainclone amp. I can not verify this information because Craig's homepage is unavailable now. The components were mounted on LM1875 pins, so signal pathways were very short.
- Status
- Not open for further replies.