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Hydrogen Generator
[rquote=498916&tid=78558&author=aga]What reaction conditions did you use ?
Al powder, chips ... |
29-11-2017 at 13:27
by: Twospoons |
Hydrogen Generator
I used Al + NaOH for a much more mundane purpose: filling balloons. I found three things: it was pr ... |
28-11-2017 at 16:07
by: Twospoons |
Net Neutrality vote coming up - call your rep, sign petition, post on FB to tell others - SOMETHING!
When you explain it that way net neutrality makes even more sense for the consumer, and I realise th ... |
23-11-2017 at 18:46
by: Twospoons |
Net Neutrality vote coming up - call your rep, sign petition, post on FB to tell others - SOMETHING!
Every 'unlimited data' contract I've seen has a fair use clause, which basically means if you try to ... |
22-11-2017 at 16:45
by: Twospoons |
Net Neutrality vote coming up - call your rep, sign petition, post on FB to tell others - SOMETHING!
I thought the ISP's job was to sell you a connection to the internet, not decide what you should or ... |
22-11-2017 at 13:50
by: Twospoons |
respirator for soldering fumes
You might like to look at the wikipedia page on solder. The list of alloys is enormous, each with di ... |
22-11-2017 at 13:28
by: Twospoons |
respirator for soldering fumes
This all begs the question: why? Is it just for the fun of restoring old equipment? Is it destined f ... |
21-11-2017 at 14:42
by: Twospoons |
3D Printer
I built my own. It will handle objects up to 240mm diameter and 300mm high.
I am, of course, st ... |
21-11-2017 at 14:12
by: Twospoons |
new way of PCB via plating
Did you weigh the pcb before and after to determine how much copper was plated out? |
20-11-2017 at 18:11
by: Twospoons |
respirator for soldering fumes
I'll second Bert - don't use acid flux for electrical work. |
19-11-2017 at 19:42
by: Twospoons |
difficult soldering job
You're talking about vapor phase reflow soldering - not really something for the home lab. Hot air ... |
9-11-2017 at 12:57
by: Twospoons |
difficult soldering job
I would expect either both or one LED to be on in the case on a defective chip. Unless its shorting ... |
7-11-2017 at 19:09
by: Twospoons |
difficult soldering job
[rquote=496695&tid=78045&author=Magpie]I am not an expert in electronics but 1nF seems like ... |
7-11-2017 at 14:09
by: Twospoons |
difficult soldering job
Yeah, the 1nf isn't really needed. You can just leave that pin open. |
7-11-2017 at 01:39
by: Twospoons |
difficult soldering job
If you are doing a bit of breadboarding, a nice thing to have is a mixed bag of capacitors, and one ... |
5-11-2017 at 17:20
by: Twospoons |
Tinkering with flyback generator for ozone
The basic idea of resonant converters is to take a problem - uncontrolled ringing due to parasitics ... |
5-11-2017 at 12:02
by: Twospoons |
difficult soldering job
I trust you have a fine tip soldering iron? And fine solder? And by 'breadboard' I assume you mean ... |
5-11-2017 at 11:34
by: Twospoons |
Tinkering with flyback generator for ozone
There are several things which could be affecting your dielectrics: heat, excess voltage, and in the ... |
3-11-2017 at 17:20
by: Twospoons |
Air compressor powered vacuum pump
It will work just fine with a domestic compressor, but they use a lot of air, so the compressor will ... |
31-10-2017 at 22:17
by: Twospoons |
Tinkering with flyback generator for ozone
I'm surprised your MOSFET hasn't died. With no current control or feedback you're really just trusti ... |
31-10-2017 at 12:21
by: Twospoons |
Non-oxidizing or corrosive lubricant for aluminum drilling
I used kerosene regularly in the machine shop. |
24-10-2017 at 21:21
by: Twospoons |
Why is infrared light a heating light?
All light is 'heating', if it gets absorbed. In fact I'd broaden that to say all electromagnetic ra ... |
21-10-2017 at 20:41
by: Twospoons |
Ball mill grinding material (making metal balls - ZA-27)
I'd recommend drilling a pilot hole too, as big as you can. wg48's experience with steel does not s ... |
18-10-2017 at 15:40
by: Twospoons |
Ball mill grinding material (making metal balls - ZA-27)
For what you want to do they should be just fine. For use with aluminium use a coolant/lubricant suc ... |
18-10-2017 at 15:10
by: Twospoons |
Ball mill grinding material (making metal balls - ZA-27)
[rquote=494804&tid=76983&author=Bert]Heck, learning how to and making your own tools is half ... |
17-10-2017 at 12:26
by: Twospoons |
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