Sorry, I don't do DACs because I see no point in just implementing typical datasheet test circuits. I am sure there are many on DIY audio that can be implemented. Now I watch a bit of news and retire for the day. 😴
Here is how to control Alps RK27 motorised pot Switches are for up and down volume. Its running at low voltage else the pot spins way too fast.
Perfection is a journey, not a destination. Hence, non existent.
I had a much larger aechive but my HDD got destroyed a few years ago. I will share all that I retained, some very big and some small and simple. If there are any circuits that you would like that I may have designed in the past you are welcome. I wish that Bonzai and OS would share some of their older stuff here that they does not sell anymore. I think he also has a vast library. What about you Hugh, there must be some you have collected over the past 50 years. I will not share stuff that does not have full support files or I have not built and tested and more importantly used., that is a bit pointless.
You can get close, but never succeed. Like women, the beautiful ones have no personality, the ugly ones remain faithful and loving, no one is perfect. Some even have money, now that is a perc. No matter what audio you have, you grow tired of it, even if it is the proverbial best ever and the itch to perfection starts over.
I don't want to be off topic but if you can share this would be fantastic 😊
You were on the right track a quite a few posts ago. First collect all the requirements, then look at circuits later.
My suggestion is to set some constraints to make this project achieveable. It can't be too complex, otherwise nobody will build it due to expense and spare time limits. So some features may have to be optional or removed altogether from the spec. Separate the essential features from the 'nice to have' features.
Also I think this project should be restricted to a single PCB. Decide on the form factor early and stick to it. This will naturally help to limit the size of the project and prevent it from spiraling out of control.
My suggestion is to set some constraints to make this project achieveable. It can't be too complex, otherwise nobody will build it due to expense and spare time limits. So some features may have to be optional or removed altogether from the spec. Separate the essential features from the 'nice to have' features.
Also I think this project should be restricted to a single PCB. Decide on the form factor early and stick to it. This will naturally help to limit the size of the project and prevent it from spiraling out of control.
You are talking a substantial PCB, for example this is only the power amps and PSU, there is no tone control, input selection remote volume etc, etc. and need to fit exactly between the heatsinks. Yes it is fine if you develop it for manufacturing, but DIY? This would have to be a manufactured chassis, I don't think anyone would be up to it. Besides this is not a job, I am just messing around with stuff available from over twenty odd years. It will take a long time integrating everything into one PCB. These are just some parts I have offered on previous pages. Well if some PCB designer like Zoltan wants to contribute that would perhaps be nice.
This was a commercially designed product, whether it got off the ground I don't know it was done in 2009 if I remember. A Canadian manufacturer wanted it and in piece meal since a single board was to big and wobbly for handling in their machines. Wiring harnesses was cheaper and easier. The pre-amp is in a box of its own.
I think using the UMS/Modushop chassis would make a good universal platform for the base. It’s already out there and the quality is proven. Then like you said before do it module based. It wouldn’t be too hard to create FPD files for the front and rear panels depending on the options selected. Then using their inner base plates would eliminate pretty much all the drilling for the end builder. Which is usually what turns a lot of people off projects from what I’ve seen.
I like this idea. Kinda like building a computer. Everything all in one place with upgrade ability. It could be a good way to have easy drop in boards for someone to try out new things versus building an entire new project every time. If this does get off the ground I’d be willing to support it how ever is needed.
I like this idea. Kinda like building a computer. Everything all in one place with upgrade ability. It could be a good way to have easy drop in boards for someone to try out new things versus building an entire new project every time. If this does get off the ground I’d be willing to support it how ever is needed.
uptownaquash, aesthetics is probably the hardest thing to reach consensus for. But I am willing to give it a bash. The original design took more than a year and the reason for utilising this. There was a production input as I have little industrial engineering background. Once you see a factory you get the drift of the capability and try to design around it. Besides you would think that someone on DIY may want to only use some of the stuff and already has a good amp or pre-amp. I also don't want to make it too difficult to implement, every one does not have the necessary tools to do it. So lets start with that chassis, where it is from and the dimensions, maybe a link so everyone has access and look see if that is what they want, then we can start fitting boards into it and harnesses to plug and play..
I have actually start missing you! I was at the point sending flowers, but it is Sunday and florists are closed. 🥺
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