What I want to know is what did your motorbike do to you to get thrown off your avatar in place of a lawnmower engine.
Wow, nobody really wants to talk about the thread topic.
I haven't done anything with the dirt bike this year, but the lawnmower is running great with a new and correct heat range plug.
I already brought it up in my previous posts, how monolithic DIY projects are. I thought scott's post was good too, I get the impression that members of the forum might not be fully aware of what's driving them.
But hey, I get it if this seems boring and everybody wants a technical argument. Far be it from me to suggest what anybody should find interesting.
If you are building something simply for the sake of building it or for fun how can it not be monolithic ? You have control from start to finish and the only judge of any consequence is you. Lets turn it around. Why would it not be monolithic ? When you have a clear vision of what you want to do, why would you include those who would dissent ?
What I don’t understand is why fun and collaboration seem to be mutually exclusive concepts here.
Or why fun requires totalitarian leadership structures.
I look at it like open source software on git.
https://resources.github.com/downloads/github-guide-to-organizations.pdf
Lead developers still of course have a say on what’s committed to the source code.
But it’s organized in a way in which useful components can be forked for other use cases, so that the initial project stays purpose built while also serving the community.
Or why fun requires totalitarian leadership structures.
I look at it like open source software on git.
https://resources.github.com/downloads/github-guide-to-organizations.pdf
Lead developers still of course have a say on what’s committed to the source code.
But it’s organized in a way in which useful components can be forked for other use cases, so that the initial project stays purpose built while also serving the community.
I do agree that there should be more open source projects. It's a no brainer for certain projects.
Some might have some objections. There have some ugly instances in the past where someone represented themselves as learning, got a lot of free advice, and had commercial aspirations as their driver all along. I suspect some of the old hands are still bitter about these past blowups.
Some might have some objections. There have some ugly instances in the past where someone represented themselves as learning, got a lot of free advice, and had commercial aspirations as their driver all along. I suspect some of the old hands are still bitter about these past blowups.
Do you mean of what should be open source?
I was thinking of things like open source PCB layouts. There must be insane amount of reinventing the wheel for LM3886 and LM317 PCB's on the forum. Other similar things like DRV134 PCB's, opamp phono preamps, CMOY amp, etc. just get reinvented countless times. Some might argue that these are always the 1st projects a PCB novice tackles, but wouldn't open source also be a good base to start learning from?
For tubes, I think something like a microcontroller to monitor and adjust output tube operating parameters would be great open source. That's one application that some have done, but never published, for whatever good reasons they may have had. Making it open source might put it over some hump.
I meant of problems stemming from community projects. My guess is that this wasn’t so much an open source effort but someone fishing for info.
However on the topic of areas worthy I think of open source designs off the top of my head:
Ladder attenuator
I/O
Buffer
Gain stage
Balanced converter
Soft start
Display and controller
DC Protection
DC filament PS
HV PS
CCS
LM3886 as you mentioned, which has already been addressed.
Maybe temperature monitoring?
I’m sure I’m missing some.....
The idea would be uniform imprint to the mounting standard, stackable for multichannel, maybe even a backplane or “motherboard”.
Some of this stuff exists here by the hundreds, in far gone group buys and perhaps using now unobtanium parts.
Novices here wind up buying this kind of stuff from China anyhow. I don’t see how that’s really in the DIY spirit either. Also it may not even be safe in some cases.
However on the topic of areas worthy I think of open source designs off the top of my head:
Ladder attenuator
I/O
Buffer
Gain stage
Balanced converter
Soft start
Display and controller
DC Protection
DC filament PS
HV PS
CCS
LM3886 as you mentioned, which has already been addressed.
Maybe temperature monitoring?
I’m sure I’m missing some.....
The idea would be uniform imprint to the mounting standard, stackable for multichannel, maybe even a backplane or “motherboard”.
Some of this stuff exists here by the hundreds, in far gone group buys and perhaps using now unobtanium parts.
Novices here wind up buying this kind of stuff from China anyhow. I don’t see how that’s really in the DIY spirit either. Also it may not even be safe in some cases.
Last edited:
How you open source something when nothing about it is hidden......
Ladder attenuator
I/O
Buffer
Gain stage
Balanced converter
Soft start
Display and controller
DC Protection
DC filament PS
HV PS
CCS
LM3886
There is nothing on the above list that isn't already out there. You just have to find it. Pretty sure it will be quicker than creating a collective.
Ladder attenuator
I/O
Buffer
Gain stage
Balanced converter
Soft start
Display and controller
DC Protection
DC filament PS
HV PS
CCS
LM3886
There is nothing on the above list that isn't already out there. You just have to find it. Pretty sure it will be quicker than creating a collective.
Last edited:
Can you point me to the designs you are referencing that are open sourced, modular (as I’ve defined it), have public gerbers or docs for the novice and are designed for a shared power supply?
I’m not suggesting a collective. No videotaped indoctrination procedures or required koolaid drinking.
People coming together with shared goals is a sensible and common practice.
I’m suggesting a work group format around a conceptual framework with previously agreed upon general ramifications that I thought would be welcomed and appreciated, make life easier for both novices and those with more experience, reduce waste, reduce chassis dilemmas, increase interoperability and increase productivity / reduce time spent rehashing what’s already out there. I would assume those things would be appealing to the average hobbyist- especially a novice.
Essentially learning from the past and optimizing for the future. Not that the past was bad, but that it’s always wise I believe to reflect on it and use it as a springboard rather than a rut.
If you don’t feel this way that’s ok.
But to continue to being a wet blanket isn’t getting you far, as the benefits are clear as day to me.
I’m not suggesting a collective. No videotaped indoctrination procedures or required koolaid drinking.
People coming together with shared goals is a sensible and common practice.
I’m suggesting a work group format around a conceptual framework with previously agreed upon general ramifications that I thought would be welcomed and appreciated, make life easier for both novices and those with more experience, reduce waste, reduce chassis dilemmas, increase interoperability and increase productivity / reduce time spent rehashing what’s already out there. I would assume those things would be appealing to the average hobbyist- especially a novice.
Essentially learning from the past and optimizing for the future. Not that the past was bad, but that it’s always wise I believe to reflect on it and use it as a springboard rather than a rut.
If you don’t feel this way that’s ok.
But to continue to being a wet blanket isn’t getting you far, as the benefits are clear as day to me.
Last edited:
Very cool! This is the first I’ve seen this!
I’ve been happy with my present DAC and haven’t been keeping tabs on the digital side of the forum. Nonetheless I’d love to order up a couple of those and give them a spin.
Your idea as well as the Open Source LM3886 embody what I’m trying to express.
It seems I’m not the only one thinking along these lines.
If you have a quick look at the dysfunction known as the non professional side of Linux development, you might appreciate why open source becomes an amalgamation of individual projects. Which is where we already are at.
("old fart" - I resemble that remark) "blameless" might be whatever passes with honors known distortion and noise testing procedures with a top quality audio analyzer. (is a Behringer KM1700 just as good as a $$$ solid state amplifier - ) 40 some years ago with typical tube preamplifiers using unregulated plate supplies, subjectively I noticed the more one could throw out in unneeded stages and controls, the better (more clear) the sound got. I don't know how that applies to tube power amplifiers as push - pull using a one bottle pentode - split load phase inverter such as Dynaco might not be deemed as good as something a bit more complex. In the world today, I would use aural exciter and dynamic range expander with some released material on CD.
can an audio device have a higher Z power supply with lots of stage interactions yet measure blameless?
can an audio device have a higher Z power supply with lots of stage interactions yet measure blameless?
I was having a mull over things that I would like that aren't currently available. Most of them are not around as they are not things that are normally used in domestic audio systems, but are still around if you hunt on pro audio sides. And one exists, having been done by Jan Didden, but the response was so deafeningly silent that I think only a couple of units were made, which is a multichannel remote volume control with individual level trims (so suitable for active speakers).
But I am not the norm.
But I am not the norm.
Yes but the useful content can be merged with a master project in which the sum is much greater than its parts. It can also be revised and updated as times change. My opinion is that Linux might be one of the most amazing grassroots cooperative accomplishments of the last 50 years. My aspiration is much more modest. There was also a time at which all of Linux was nonprofessional. I believe we are talking about two different things, anyhow. If you widen your scope perhaps we’ll see more eye to eye.
- Status
- Not open for further replies.