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do-it-yourself nuclear magnetic resonance spectroscopy
Downside: two conversions adds two mixers' worth of noise, plus filters. I wonder how noisy ceramic ... |
13-10-2010 at 17:57
by: 12AX7 |
Medical Laser
I've seen EBW units before, as in, walked past them... didn't get a look inside or anything.
The ... |
13-10-2010 at 07:52
by: 12AX7 |
Medical Laser
Mica dissolves readily in fluxes, if you don't mind fusing it...
Tim |
12-10-2010 at 21:18
by: 12AX7 |
Sodium on silicagel
Yes, metals can be finely divided, but that simply doesn't occur spontaneously from a blobby liquid ... |
10-10-2010 at 14:22
by: 12AX7 |
Garlic "Oil" Extraction Techniques
Drizzle whole garlic head with crude oleic acid triglyceride and sprinkle with granulated NaCl. Pla ... |
9-10-2010 at 21:57
by: 12AX7 |
What’s the average age?
Strange, didn't I already vote in this? Were the votes reset recently, or am I mad?
...A possibi ... |
9-10-2010 at 21:53
by: 12AX7 |
Medical Laser
[rquote=189590&tid=13183&author=peach]
[b]@12AX7[/b]
Have you seen [url=http://www.audio ... |
9-10-2010 at 21:47
by: 12AX7 |
Microwave Kiln "Microkiln"
Probably work well. Mind that porcelain will crack from thermal stress....
There are lots of kin ... |
9-10-2010 at 21:40
by: 12AX7 |
do-it-yourself nuclear magnetic resonance spectroscopy
http://wingzero.ath.cx/index.php?page=xtal-osc-varactors |
9-10-2010 at 21:39
by: 12AX7 |
Sodium on silicagel
How the heck is sodium supposed to absorb? This is metal we're talking about. I can float rocks on ... |
9-10-2010 at 21:32
by: 12AX7 |
Medical Laser
Ahh silver mica capacitors ("cap" is short for capacitors; the varicaps are the rotating vane things ... |
7-10-2010 at 20:51
by: 12AX7 |
Medical Laser
Amazingly, I've heard of *solid* silver varicaps or inductors. Very rare I'm sure.
Almost all va ... |
7-10-2010 at 07:40
by: 12AX7 |
How do you get high temperatures ?
Under $400, depending on where you find parts and how much is surplus (aka junk).
The 440V 3 phas ... |
5-10-2010 at 21:16
by: 12AX7 |
How do you get high temperatures ?
Induction heater  |
5-10-2010 at 21:02
by: 12AX7 |
Value of gold
Gold is golden. Nuff said.
Copper is even more golden (it's coppery!), and alloys are gold, but ... |
4-10-2010 at 18:43
by: 12AX7 |
design equivalent circuit
What kind of model? DC? Nonlinear? AC? Frequency or time domain?
Tim |
4-10-2010 at 18:38
by: 12AX7 |
Synthesis of unsym.-heptachloropropane and hexachloropropene (updated)
Are you sure about that number?...
http://www.google.com/patents/about?id=QCBqAAAAEBAJ&dq=13208 ... |
3-10-2010 at 18:04
by: 12AX7 |
Dissolving Mainboards in HCl :: Dangerous ?
You will find somewhere between little and none on power devices. TO-3s are generally steel, someti ... |
27-9-2010 at 21:19
by: 12AX7 |
galvanic cell
NaCl would be a reasonable inert, ionic solvent; Na3AlF6 better, since Al2O3 is soluble and therefor ... |
27-9-2010 at 08:52
by: 12AX7 |
galvanic cell
NaOH reacts by the spontaneous reaction
6 NaOH + 4 Al = 2 Al2O3 +3 H2(g) + 6 Na(g)
Sodium sulfur ... |
27-9-2010 at 07:12
by: 12AX7 |
Dissolving Mainboards in HCl :: Dangerous ?
Epoxy doesn't really do anything in acid.
If you use concentrated HNO3 later, you'll probably sta ... |
27-9-2010 at 07:06
by: 12AX7 |
Reaction mechanism? Anodic oxidation of chloride
Something with superoxide, perhaps? That's a notorious radical...
Perhaps it would form by the r ... |
27-9-2010 at 07:02
by: 12AX7 |
Reaction mechanism? Anodic oxidation of chloride
Could perhaps be a zipper of radical additions? ClO. + ClO(-) ==> ClO2. + Cl(-), ClO2. + ClO(-) ... |
26-9-2010 at 21:32
by: 12AX7 |
Tutorial for making a miniature chlorate cell
I discovered the same problem with bromate. I once attempted to use a platinized titanium anode, wh ... |
26-9-2010 at 21:23
by: 12AX7 |
do-it-yourself nuclear magnetic resonance spectroscopy
[rquote=188295&tid=14365&author=arsphenamine][b]@12AX7[/b]
I agree that the johnson noise f ... |
26-9-2010 at 10:09
by: 12AX7 |
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