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Tinning PCB
I found the easiest way is to paint the board with liquid flux (essential !), then use a piece of de ... |
3-1-2011 at 19:50
by: Twospoons |
Failed Experiments with Ferrofluids
I've been interested in ferrofluids for a while. I seem to recall reading somewhere that you don't w ... |
2-1-2011 at 14:35
by: Twospoons |
Solubility of copper nitrate in nitric acid?
The idea was to displace silver nitrate from the mixed nitrates by adding excess nitric acid. Silve ... |
1-1-2011 at 21:47
by: Twospoons |
Solubility of copper nitrate in nitric acid?
Thanks for that. An answer to the original question! |
1-1-2011 at 13:22
by: Twospoons |
Solubility of copper nitrate in nitric acid?
It was the cleanest I had on hand. Not much is stored in our freezer, and it doesn't smell. Mostly ... |
31-12-2010 at 10:34
by: Twospoons |
Solubility of copper nitrate in nitric acid?
Ok, I've just redissolved the crystals I got from adding nitric acid. There is still some blue colou ... |
30-12-2010 at 14:20
by: Twospoons |
Solubility of copper nitrate in nitric acid?
Anyone have a figure for this? I've tried and failed to find it with good ol' google.
FYI its part ... |
29-12-2010 at 16:45
by: Twospoons |
Cattle prod for electric bridge wire
Cattle prods will be well under a joule, probably as low as 0.1 J. I used to work in that industry ... |
15-11-2010 at 20:50
by: Twospoons |
c mos handling precautions
[rquote=191629&tid=14770&author=12AX7]
These days, ESD isn't such a big deal, because manuf ... |
31-10-2010 at 18:27
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
It can be done with wire bonds, or the chips can be attached upside down (flip-chip) using gold ball ... |
25-10-2010 at 19:34
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
[rquote=190919&tid=14365&author=aliced25]
As to the ease of mass production - mass produc ... |
25-10-2010 at 16:52
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
[rquote=190804&tid=14365&author=aliced25]
So the only reason why traces are used is the dif ... |
21-10-2010 at 21:50
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
Years ago I had access to 3d FEA (Ansys ? I think it was). Had the nice feature of starting from a c ... |
18-10-2010 at 20:24
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
[rquote=190562&tid=14365&author=aliced25]
PS If anyone has knowledge of a working torrent ... |
18-10-2010 at 18:37
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
[rquote=190562&tid=14365&author=aliced25]
Now I cannot understand why there are products ... |
18-10-2010 at 14:07
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
That's interesting. It shows a shift of several hundred kHz with just 0.01T field change at 0.8T. So ... |
11-10-2010 at 17:10
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
I'd be inclined to do all the processing in a PC, and focus the design effort on the analogue and da ... |
10-10-2010 at 20:31
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
Regarding OCXOs: Not a trivial project by any means - I spent 6 months working for Rakon on their do ... |
10-10-2010 at 14:33
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
[rquote=188629&tid=14365&author=arsphenamine]
For one, if the internal CPU clock on the ... |
28-9-2010 at 21:18
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
I getting confused here - would you mind posting a complete summary of the system parameters? eg fie ... |
28-9-2010 at 14:01
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
Somehow I knew you'd ask - sorry the code is not mine to give away. I've no other gripes - in fact ... |
27-9-2010 at 20:55
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
I can't say for the Microchip solution, but we were using Silabs parts. Silabs did provide libraries ... |
27-9-2010 at 14:09
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
I'd just like to add the benefit of my experience with coding USB on micros : avoid if you can. It ... |
26-9-2010 at 18:15
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
The electronics you describe sounds remarkably like an RF spectrum analyser with an attached trackin ... |
14-9-2010 at 18:43
by: Twospoons |
do-it-yourself nuclear magnetic resonance spectroscopy
I'm thinking of the tradeoff between the 'perfect' answer, and one that is easily obtainable (its wh ... |
14-9-2010 at 14:10
by: Twospoons |
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