The difference is that OS did all his work mostly alone, with no expectation of help. That worked incredibly well. I salute! Now lets get back to our own meager, unworthy accomplishings...
Here is the final amp schematic, ready to be prototyped. You know, if I had the parts, I could whip up the entire amp in a day or two just P-P soldering. No need for one of those PCB things. After all, PCB has a higher dielectric constant than air anyways. Glue all the transistors to a blank PCB and solder away with wrapping wire... Now THAT is how you get short traces. Just send me suitable parts...
Parb, I thank you for your interest. I don't have the parts to build the regulators or the amp, so I guess there are two options.
1: Send me the right parts to build the amp, so I can troubleshoot.
2: If you are willing to wire up the prototype yourself, and can take good pictures, we could supervise the development of the prototype. Anyone up for live video feed...?
- keantoken
Here is the final amp schematic, ready to be prototyped. You know, if I had the parts, I could whip up the entire amp in a day or two just P-P soldering. No need for one of those PCB things. After all, PCB has a higher dielectric constant than air anyways. Glue all the transistors to a blank PCB and solder away with wrapping wire... Now THAT is how you get short traces. Just send me suitable parts...
Parb, I thank you for your interest. I don't have the parts to build the regulators or the amp, so I guess there are two options.
1: Send me the right parts to build the amp, so I can troubleshoot.
2: If you are willing to wire up the prototype yourself, and can take good pictures, we could supervise the development of the prototype. Anyone up for live video feed...?
- keantoken
Attachments
Were I to build the amp these are the things I need.
1: Blank unetched PCB
2: All components needed, or equivalents.
3: PSU stuff, for testing at HV.
- keantoken
1: Blank unetched PCB
2: All components needed, or equivalents.
3: PSU stuff, for testing at HV.
- keantoken
I'll make it all in one , or any other way the "cattle" 🙄 would like. Or BOTH. You realize , one can just create a cascode , or ltp , or ccs .. as a macro and paste "blocks" into a new creation. It really cuts down on making variants of the same design. 🙂
PS. I still need more input .. including KT's. I don't want to threadjack or seem as through I am "selfpromoting". 🙁
OS
OS, I never wrote off TMC. I could try it if I get the chance to build the boards. BTW, has ANYONE gotten the latest volume of Linear Audio? Doug Self discusses TMC...
What got to me is that a lot of people appear to want to build the amp when the first official PCB's are posted, and not wait until they are tested. I didn't want to put in TMC and later find out it's unworkable and have all that work for nothing.
BTW, have I not proven yet that I am the worst possible leader for this thread?
- keantoken
What got to me is that a lot of people appear to want to build the amp when the first official PCB's are posted, and not wait until they are tested. I didn't want to put in TMC and later find out it's unworkable and have all that work for nothing.
BTW, have I not proven yet that I am the worst possible leader for this thread?
- keantoken
Keantoken:
You are 100 tops in my book, without you this would have never gotten off the ground...
Thanks and Thanks again.😉
You will get the parts you need to do what ever you want as far as development is concerned, I will make it happen one way or another...
Thanks🙂
You are 100 tops in my book, without you this would have never gotten off the ground...
Thanks and Thanks again.😉
You will get the parts you need to do what ever you want as far as development is concerned, I will make it happen one way or another...
Thanks🙂
OK keen , I will make YOUR design for the amp. But ,I will also make the very slight varient which is mine. The 4 tranny widlar is no issue , it is that beta enhancement scheme. At least with both variants we have something to fall back on.
Someone should download "splan" - "Abacom.sPlan.v6.0.By.VICTORIOUS.zip" from my "zip1" folder and make the professional schema of kean's design so my layout will reflect the proper components.
OS
Someone should download "splan" - "Abacom.sPlan.v6.0.By.VICTORIOUS.zip" from my "zip1" folder and make the professional schema of kean's design so my layout will reflect the proper components.
ALL my boards allow for both traditional miller comp. and TMC ... nobody loses.
OS
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OS, go ahead and build it. However you've already done a lot, and you might want to step back to let us pull our own wagon.
- keantoken
- keantoken
Thats why I want somebody else to make the pro schematic. I don't feel like doing everything. I have just done 4 Big OPS boards , so what is another one?
The "cattle " beckon for a board ... in fact , they are just a "ichin' for one.
If "steppin' back" means you don't want me to do it .. I get the drift. 🙁
OS
OS, the drift is that I won't decide for you what you should do. Why does my response matter so much anyways? I was just thinking, if this trend continues, you'll the the "test jockey". In the past you've tested mainly designs that you were confident in, that you were happy with. To build this would seem to be a step backwards for you. It doesn't seem fitting to me. (I guess what I'm saying is if you don't believe in the philosophy of the design, then don't waste your time with it. Build something you believe in)
Now as for PCBs... A PCB would be greatly appreciated, you know this. Besides, no one can do it like you, and it looks like you're up to the task. What's the catch?
Maybe we should discuss privately, to understand each other better.
- keantoken
Now as for PCBs... A PCB would be greatly appreciated, you know this. Besides, no one can do it like you, and it looks like you're up to the task. What's the catch?
Maybe we should discuss privately, to understand each other better.
- keantoken
And thanks to everyone who has kept this thread going. We're all in it together, you know...
- keantoken
- keantoken
No catch 😕 , how would you like it ? Just the amp (OPS/VAS/LTP) is all I offer. If there is room on the PCB after that , Your regulator could be integrated. Even as I suggested it be left offboard.
OS
could be a very good one 😉 but maybe we will never know 🙁
and who knows, maybe the sixth one would really...
Kean, have patience, and keep up the good work
Alright then. I don't see anything wrong with how you do most of your boards, though personally I would squeeze the components closer together for shorter traces. You can see my philosophy in my partial PCB's on page 19. No one even commented on those though, which I thought was EXTREMELY odd...
- keantoken
- keantoken
no no, please
surely we were ALL holding our breath not to disturb you in your work, Im certain about it 😉
maybe remember that in the front row you need a thick skin, sometimes very thick
and the first round is yours
noone can take that away from you
its what we learn that matters
So are you saying there's nothing wrong with it?
BTW, could someone please check these gerber exports? I need to know if the way I'm using the PCB software makes any sense...
- keantoken
BTW, could someone please check these gerber exports? I need to know if the way I'm using the PCB software makes any sense...
- keantoken
Schematic ...first
Hi, I'm in with schematic first , later I will layout PCB .🙂
Alex.
Hi, I'm in with schematic first , later I will layout PCB .🙂
Alex.
Attachments
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im sending you a pm.
let me know what parts you need. anything orderable on mouser i can get to you. i need to know mainly if you need any specific types of components such as specific types of caps etc. i can have that ordered tomorrow. transformers may be trickier for me to order, but i think i can get the parts if they are available. even better, if you create a shopping template on mouser of what you want and mail it to me i can get that directly.
if thats all i contribute it seems worth it. 😉
par
let me know what parts you need. anything orderable on mouser i can get to you. i need to know mainly if you need any specific types of components such as specific types of caps etc. i can have that ordered tomorrow. transformers may be trickier for me to order, but i think i can get the parts if they are available. even better, if you create a shopping template on mouser of what you want and mail it to me i can get that directly.
if thats all i contribute it seems worth it. 😉
par
Yeah that's true, but we allmost left breathless. 😀
OK, let someone experienced from the forum, moderators surely know the guys, put down the PCB and please do not forget to seat the shunts on the board, cause to my humble opinion, speaking with words hehe, these are speciality of this design and must not be omited. Goood luck to the project & standing by. 😉