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PID settings (tuning)
The same slowdown should work in both directions.
Better still, insulate your furnace!
The cont ... |
14-1-2008 at 20:39
by: Twospoons |
PID settings (tuning)
You should be able to slow it down by dropping the proportional gain, and probably the integral gain ... |
13-1-2008 at 19:40
by: Twospoons |
Teach `em Young!
For my daughter's 7th birthday we did a "harry potter" theme (gag!). So I did a "potions" class wit ... |
11-1-2008 at 21:34
by: Twospoons |
More on PbO2 electrodes
Funny, I've often thought plating the inside of a pipe would be better. So many refs to stressed de ... |
6-1-2008 at 20:49
by: Twospoons |
potassium nitrate burning realy slow
You've got to remember the shipping costs of getting the stuff across the Pacific - including hazmat ... |
4-1-2008 at 17:39
by: Twospoons |
Aqeous chemistry of TiAl6V4
"so I could eat and feed my little girl" - that sounds awfully dodgy. I'd put a comma after "eat", i ... |
4-1-2008 at 17:25
by: Twospoons |
Re: Apparatus - Thermo-relay switch?
The easy solution is to go on ebay and get something like this:
[url=http://cgi.ebay.com/PID-Temper ... |
2-1-2008 at 19:54
by: Twospoons |
potassium nitrate burning realy slow
No idea if hardwood charcoal is that bad. Softwood is usually used - mine was pine based IIRC. It ... |
2-1-2008 at 19:31
by: Twospoons |
potassium nitrate burning realy slow
It shouldn't be light grey. It should be black, or very dark grey. Sounds to me like you don't hav ... |
2-1-2008 at 18:50
by: Twospoons |
potassium nitrate burning realy slow
You are mixing by weight, and ball-milling?
My last lot of BP burned unbelievably fast (a 'thump' ... |
2-1-2008 at 16:56
by: Twospoons |
Tin Oxide + Antimony Oxide Anode
The ones in the know will be demanding Pt earrings - none of this cheapskate DTO-Ti rubbish. |
19-12-2007 at 17:16
by: Twospoons |
"Drug Cooking" vs "Bomb Making"
A lot of it comes down to intent. You can spot the meth cooks and kewl bomerz a mile off - and I'm ... |
19-12-2007 at 17:11
by: Twospoons |
Darwin's Black Box
Ah, yes you can. Darwin himself was a theist - trained as a parish priest. The study of nature - p ... |
16-12-2007 at 16:56
by: Twospoons |
Forget everything else, diamond is the answer!
Of the diamond CVD papers I've seen, the most common (and accessible for us) method is simply a hot ... |
16-12-2007 at 14:29
by: Twospoons |
Cobalt Oxide Anodes
Dammit Rosco! I thought I was going to be able to patent it and make millions!
Hey Xenoid, another ... |
13-12-2007 at 19:15
by: Twospoons |
Cobalt Oxide Anodes
Well, I'm nearly ready to join the hunt. Got 95/5 Sn/Sb solder, Co carbonate and NiO yesterday. Wan ... |
13-12-2007 at 13:02
by: Twospoons |
Cobalt Oxide Anodes
@Xenoid: the way to attack epoxy is to get it nice and hot with your heat gun - this will soften it ... |
11-12-2007 at 16:56
by: Twospoons |
Cobalt Oxide Anodes
@jpsmith : hold on to that dead microwave - it is bound to have a good transformer in it. If you ha ... |
9-12-2007 at 18:46
by: Twospoons |
Electrical Furnace Contruction - My design and implementation
You'd do better to modify a bench-top induction cooker - you know, the portable sort you plug into t ... |
5-12-2007 at 14:42
by: Twospoons |
More on PbO2 electrodes
You'll find temperature control in a toaster oven to be a lot worse. The thermostats in those thin ... |
2-12-2007 at 18:23
by: Twospoons |
More on PbO2 electrodes
This paper is really just food for thought. Of note : "crackfree films of TiO2 on 316 stainless", t ... |
29-11-2007 at 16:36
by: Twospoons |
Barium Nitrate
If you are after the barium nitrate as a flame colourant, do not use sodium salts in the metathesis. ... |
25-11-2007 at 18:01
by: Twospoons |
neon transformer
Microwave oven transformers (MOT) are not current limited like a neon transformer (NST). So as soon ... |
19-11-2007 at 20:52
by: Twospoons |
Sealing wires inside glass
You might have better luck using the kovar wire from inside an ordinary household lightbulb. This h ... |
12-11-2007 at 12:21
by: Twospoons |
PC PSU to laboratory PSU
If you do have a variac, it will work wonderfully for adjusting the output of an ordinary transforme ... |
8-11-2007 at 19:20
by: Twospoons |
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