diy electricity
janneman, Vivek,
One upon a time we used to have *pedal powered* vacuum tube transmitters / receivers for use in isolated places where your nearest neighbour could be hundreds of miles away.
http://www.antiqueradio.com/traeger_pedal_07-99.html
We have better radios here in Australia nowadays. 😉
GP.
janneman, Vivek,
One upon a time we used to have *pedal powered* vacuum tube transmitters / receivers for use in isolated places where your nearest neighbour could be hundreds of miles away.
http://www.antiqueradio.com/traeger_pedal_07-99.html
We have better radios here in Australia nowadays. 😉
GP.
IC design books
Although DIY ICs isn't really a worthwhile pursuit, I can wholeheartedly recommend the following for learning things about electronic design:
Analysis and Design of Analog Integrated Circuits, by Gray and Meyer ( and now also Hurst and Lewis added some chapters to the latest edition I guess )
Design of Analog Integrated Circuits and Systems , by Laker and Sansen
In my opinion, these books blow Sedra and Smith out of the water, as they are far more concise and filled with information.
Concise being the operative word, they aren't exactly easy to read. Or cheap. But if you make the effort to read it, you won't be sorry, especially if you got lucky and found a used one at a university book shop.
Although DIY ICs isn't really a worthwhile pursuit, I can wholeheartedly recommend the following for learning things about electronic design:
Analysis and Design of Analog Integrated Circuits, by Gray and Meyer ( and now also Hurst and Lewis added some chapters to the latest edition I guess )
Design of Analog Integrated Circuits and Systems , by Laker and Sansen
In my opinion, these books blow Sedra and Smith out of the water, as they are far more concise and filled with information.
Concise being the operative word, they aren't exactly easy to read. Or cheap. But if you make the effort to read it, you won't be sorry, especially if you got lucky and found a used one at a university book shop.
Re: diy electricity
Very good, this guy was an inventor in every sense of the word. Now, had he added a couple of wheels and a handle bar, he could have actually gone somewhere as well. Oh well, can't think about everything, can you?🙂 🙂
Jan Didden
PS Your copies are underway
Circlotron said:
Very good, this guy was an inventor in every sense of the word. Now, had he added a couple of wheels and a handle bar, he could have actually gone somewhere as well. Oh well, can't think about everything, can you?🙂 🙂
Jan Didden
PS Your copies are underway
sam9
Upon initial reading of this thread my reaction was that DIY IC's were out of the question. However, as lark I browsed the industrial section of ebay. There is a lot of 20 year old technology for sale. It's still a stretch, but I someone had the right industry experience and more determination than sense, it just might be do-able. I can't think of any sensable reason to do it except to prove that one could. It would an undertaking out of proportion to the likely results.
Upon initial reading of this thread my reaction was that DIY IC's were out of the question. However, as lark I browsed the industrial section of ebay. There is a lot of 20 year old technology for sale. It's still a stretch, but I someone had the right industry experience and more determination than sense, it just might be do-able. I can't think of any sensable reason to do it except to prove that one could. It would an undertaking out of proportion to the likely results.
The equipment is one expense. Then there's the clean room, chemistry, toxic waste, deionized water supply, and etc. to contend with. And unetched wafers cost $1k or more each depending on size and materials.
You'd have to be Bill Gates to make ICs on a hobby basis.
MR
You'd have to be Bill Gates to make ICs on a hobby basis.
MR
DIY IC's
Hi Vivek,
Why do you want to make DIY IC's?.
I have spent quite some time to design a discrete "IC" because it sounds better.
Of course it takes a lot more boardspace etc. but the good sound counts for me.😕
Hi Vivek,
Why do you want to make DIY IC's?.
I have spent quite some time to design a discrete "IC" because it sounds better.
Of course it takes a lot more boardspace etc. but the good sound counts for me.😕
Not quite that bad
As I said, take a look on e-bay. In the industrial section search for "wafer", "sputer", "Plasma", "etch", "coater", "Thin film" and so on. See what turns up. Remember you are not looking for full scale 2002 production setup. You are looking for 80's era lab prototyping equipment. For instance 4 inch wafers fabs are long gone but 4 inch NOS wafers in the original packaging do turn up from time to time for far less than $1k each.
You would need a hobby budget bigger than mine but far smaller than Gates. I live in Silicon Valley and there is no doubt there are a number people who have the budget, it's just that they are too busy thinking about their next start up or waiting for their potfolio to recover.
MRehorst said:
As I said, take a look on e-bay. In the industrial section search for "wafer", "sputer", "Plasma", "etch", "coater", "Thin film" and so on. See what turns up. Remember you are not looking for full scale 2002 production setup. You are looking for 80's era lab prototyping equipment. For instance 4 inch wafers fabs are long gone but 4 inch NOS wafers in the original packaging do turn up from time to time for far less than $1k each.
You would need a hobby budget bigger than mine but far smaller than Gates. I live in Silicon Valley and there is no doubt there are a number people who have the budget, it's just that they are too busy thinking about their next start up or waiting for their potfolio to recover.
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