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Strange earthing problem
I was removing some electronic components from an old pcb when I noticed some leakage current from m ...		 16-1-2019 at 20:26
by: wg48
Pump oil for Rotary Vane - What grade?
If the pump is old, worn and your lab is heated select a higher viscosity than recommended by the ma ...		 14-1-2019 at 15:24
by: wg48
Cheap pressure equalizing addition funnels ebay
[rquote=583617&tid=128487&author=Ubya]if it wasn't for the 20$ shipping cost to my house it ...		 14-1-2019 at 15:01
by: wg48
Cheap pressure equalizing addition funnels ebay
Wow Rex are fast now as the have a depot in the UK.

My 50ml addition funnels arrived this morning ...		 14-1-2019 at 03:23
by: wg48
Preparation of Phenol from Salicylic Acid
[rquote=320766&tid=27617&author=thebean][rquote=320751&tid=27617&author=DraconicAcid ...		 1-1-2019 at 07:14
by: wg48
Electrospinning experiments
Improvments in the set up

So I lapped the tip of the hypodermic needle flat and square and fixed ...		 30-12-2018 at 20:39
by: wg48
Determining gasoline volume - best method
In the UK they have a government department called Weights and Measures. They routinely check the ac ...		 27-12-2018 at 04:11
by: wg48
Be,As and Tl
There is no beryllium in domestic microwave magnetrons.

Its an often repeated myth that the pink ...		 27-12-2018 at 00:47
by: wg48
Thoughts On Anodes
[rquote=569067&tid=5050&author=pinko][rquote=569048&tid=5050&author=yobbo II]How thi ...		 25-12-2018 at 20:18
by: wg48
Recovering a sulphated lead acid battery
I did a crude capacity test on the torch battery (see one of my previous posts) by reconnecting it t ...		 25-12-2018 at 20:00
by: wg48
Recovering a sulphated lead acid battery
De-sulphating a lead acid battery that had other problems prior to the sulphating is not likely to h ...		 25-12-2018 at 03:07
by: wg48
The Short Questions Thread (4)
[rquote=568320&tid=25055&author=ninhydric1]Can you dry THF with calcium chloride? I know tha ...		 25-12-2018 at 02:14
by: wg48
Recovering a sulphated lead acid battery
The 6V battery has now been charging at approximately 100mA for 12 hours. Its voltage has risen from ...		 23-12-2018 at 22:38
by: wg48
Recovering a sulphated lead acid battery
I was given a 6V gell type lead acid battery that was believed t be dead by the original owner. So I ...		 23-12-2018 at 06:59
by: wg48
What is the best way to go about making a nonacidic aluminum chloride solution (for an antiperspirant)?
When I first used antiperspirants they left white stains on my shirts which did not wash out or only ...		 23-12-2018 at 04:24
by: wg48
Quad TEC1-12706 water cooler for condensers (FAIL)
[rquote=563547&tid=106620&author=Sulaiman]

. TECs need [b]LARGE EFFICIENT heatsinks[/b] - ...		 16-12-2018 at 17:47
by: wg48
I need help with optoisolators. . .
[rquote=563676&tid=113080&author=WGTR]It's unclear from your post whether you're trying to l ...		 16-12-2018 at 17:25
by: wg48
do-it-yourself nuclear magnetic resonance spectroscopy
[rquote=563681&tid=14365&author=DavidJR]
No varying the field for scanning, i’ll vary the ...		 16-12-2018 at 16:55
by: wg48
do-it-yourself nuclear magnetic resonance spectroscopy
[rquote=563437&tid=14365&author=DavidJR]I'm planning on doing some DIY NMR experiments. Stil ...		 16-12-2018 at 08:40
by: wg48
EHT multiplier and diode surge ratings
Sulaiman: Thanks for the comments. As it happens my diodes are about 5mA max continuous current. Li ...		 13-12-2018 at 10:28
by: wg48
Latest chemical order?
Two litres of mineral oil from Ebay. Hopefully Xmas will not delay its delivery to long. 		12-12-2018 at 04:27
by: wg48
Dimethylmercury cold storage?
Hopefully any organisation in the developed world will have dimethyl mercury in secure storage and ...		 12-12-2018 at 04:22
by: wg48
EHT multiplier and diode surge ratings
I am building an approximately a 50kV supply using a Cockcroft-Walton multiplier circuit consisting ...		 12-12-2018 at 02:59
by: wg48
Stability and precision of Hall-based current sensors?
[rquote=552788&tid=103892&author=Twospoons]
So you ideally want a split core CT, or perhaps ...		 15-11-2018 at 00:41
by: wg48
Exotic thermites & analogs
[rquote=550675&tid=10249&author=Alidada]Hi everyone.

I am interested in ways you can make ...		 8-11-2018 at 05:52
by: wg48
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