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Ace Hanovia Photochemical Equipment
Dropping from 60Hz to 50Hz means the inductive ballast will be down to 83% of the required impedance ... |
13-4-2008 at 14:44
by: Twospoons |
Induction heating
Better still, get a portable bench-top induction cooker (~$100 used), gut it, and rebuild into a fur ... |
6-4-2008 at 14:09
by: Twospoons |
Advice on scaled-up H20 Electrolysis?
The NaOH does have one other drawback - a tendency to produce foam. (thats not what the foam in the ... |
1-4-2008 at 19:40
by: Twospoons |
Putting my electrolyser to good use
Here's a short vid of what happens when you ignite a foam of mixed hydrogen and oxygen (yes - inspir ... |
1-4-2008 at 13:56
by: Twospoons |
Advice on scaled-up H20 Electrolysis?
Here is a crude sketch of the electrolyser I built from stainless steel, 6mm acrylic, and non-woven ... |
1-4-2008 at 13:44
by: Twospoons |
Sulfur trioxide from sodium hydrogen sulfate
Seems to me the needed piece of kit is a small ( say 1 cu.foot?) electric ceramic kiln. With a top t ... |
24-3-2008 at 13:17
by: Twospoons |
DIY Sub Zero C freezer?
An ordinary deep freeze runs at -18C. Simply tweaking the thermostat might get you down to -20C. |
19-3-2008 at 16:48
by: Twospoons |
What's your job?
Electronics engineer (18 years now). Currently working with GPS, but I've been involved with many a ... |
25-2-2008 at 13:40
by: Twospoons |
heating element for water bath
Sounds like an electric jug with the lid off, to me. |
17-2-2008 at 18:33
by: Twospoons |
Symbol N
If its on a webpage or e-document it is more likely its a character from a character set other than ... |
4-2-2008 at 21:07
by: Twospoons |
real problem pouring acids.
Why not keep a pipette specifically for each chemical you need to dispense? No contamination that w ... |
4-2-2008 at 13:24
by: Twospoons |
Oxidation of wine?
Actually, the upper limit for alc% by fermentation is a lot higher than 14.5%, though commercial win ... |
31-1-2008 at 13:26
by: Twospoons |
Elemental Selenium
Selenium is used as the photosensitive material on the print drums of some laser printers and photoc ... |
30-1-2008 at 18:25
by: Twospoons |
electrolysis diaphragm
MJP is correct. The checkout girl was rather upset when I told her what I wanted them for  . Thou ... |
29-1-2008 at 18:57
by: Twospoons |
High Voltage
There are many websites dealing with the design process in great detail. Recent analyses show the t ... |
29-1-2008 at 18:48
by: Twospoons |
Oxidation of wine?
So what you are saying is the conversion to acetic acid is due to bacterial action? I'd have though ... |
29-1-2008 at 18:10
by: Twospoons |
Oxidation of wine?
Why is it a half full bottle of red wine will turn to vinegar in a week, while a half full bottle of ... |
29-1-2008 at 16:53
by: Twospoons |
Multilayer Metal Oxide / Titanium Anodes for Chlorate/Perchlorate
I'd forget torching the bakelite - few things smell worse, and it is probably brittle enough that a ... |
29-1-2008 at 16:45
by: Twospoons |
Multilayer Metal Oxide / Titanium Anodes for Chlorate/Perchlorate
Is that a ceramic terminal block on the end of that element? If not, you might be well advised to ch ... |
29-1-2008 at 14:17
by: Twospoons |
electrolysis diaphragm
Depends on what you are electrolysing. Fibreglass wont stand up to strong alkali. Thats why I used ... |
29-1-2008 at 14:09
by: Twospoons |
how much money did you spend?
I've spent bugger all. I got lucky, and got all my glass free. Perhaps $200 on chems. |
29-1-2008 at 14:04
by: Twospoons |
Current Density Uniformity For Simple Electrolytic Cell Geometry
I love FEA. What software did you use? I use FEMM4.0 a lot but it is only 2 d. |
27-1-2008 at 18:28
by: Twospoons |
More on PbO2 electrodes
Maybe you could leave it with a tiny trickle of current - just enough to keep the plating going, not ... |
23-1-2008 at 13:17
by: Twospoons |
More on PbO2 electrodes
Have you ever tried putting an aquarium bubbler beneath the anode while plating? That might be an e ... |
16-1-2008 at 17:17
by: Twospoons |
More on PbO2 electrodes
You can get simpler if all you want is a bit of additional stability. Just add an ordinary lightbul ... |
15-1-2008 at 13:40
by: Twospoons |
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