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Gas pressure/flow regulator
Typically proportional valves are used for this type of control. You can often get these on ebay for ...
12-7-2019 at 19:14
by: Photonic
Open source hardware projects
[rquote=608612&tid=148000&author=brubei]
If you like thermocouple, here is a second very in ...
14-4-2019 at 15:27
by: Photonic
Decent cell build....
For those investigating plating of platinum to titanium, or plating anything to titanium in general ...
14-4-2019 at 12:05
by: Photonic
Open source hardware projects
I actually just designed and built a very high resolution ethernet based thermocouple system with PI ...
14-4-2019 at 11:49
by: Photonic
optocouplers
Depending on the optocoupler used you may not need a buffer. Typically relays use a significant amou ...
14-4-2019 at 11:34
by: Photonic
Open source hardware projects
What's everyone working on as far as hardware?

I would like to contribute some of my time to som ...
14-4-2019 at 11:14
by: Photonic
I need help with optoisolators. . .
There are many ways to do logic level translation. Each with their own advantages.

Optocouplers ...
14-4-2019 at 10:42
by: Photonic
VLE Data
Would anyone by chance have access to vapor-liquid-equilibrium data for Acetaldehyde, Ethanol, and W ...
10-4-2019 at 21:20
by: Photonic
Drying Manganese Nitrate
[rquote=538642&tid=94078&author=mayko]Did you observe the formation of a dark brown solid in ...
26-9-2018 at 16:09
by: Photonic
Drying Manganese Nitrate
Does anyone have a procedure for preparing Mn(NO3)2 crystals?

I prepared a small quantity of it ~ ...
24-9-2018 at 18:27
by: Photonic
electronic laboratory notebook
[rquote=511862&tid=81465&author=tapira1]Please anyone to suggest a free ELN suitable for syn ...
4-9-2018 at 19:20
by: Photonic
Copper Oxychloride Identification
I have been unable to positively identify a copper compound I have created. My theory is that it is ...
2-9-2018 at 20:18
by: Photonic
Yellow powder found in hotplate
It would be hard to diagnose what you're talking about without seeing some photos. Off the top of my ...
1-8-2017 at 03:01
by: Photonic
AC voltage amplification with DC battery
Hey Element -- Take a look at "Half Bridge Drivers (or Controllers)" and "Discrete Half Bridge".

...
1-8-2017 at 02:48
by: Photonic
Powering a heating mantle with a computer PS
There is one idea that nobody has mentioned - a boost converter. Essentially a switching power suppl ...
1-8-2017 at 02:32
by: Photonic
Can someone with an Ika RCT or RET hotplate help me out?
[rquote=489290&tid=75840&author=Dr.Bob]Are you guys in the US or Europe? I have a broken o ...
31-7-2017 at 16:57
by: Photonic
Can someone with an Ika RCT or RET hotplate help me out?
[rquote=489228&tid=75840&author=RegularOldGuy]You are in luck, I had one already opened on m ...
30-7-2017 at 22:43
by: Photonic
Can someone with an Ika RCT or RET hotplate help me out?
My hotplate just blew up due to a power surge, and I need someone with an Ika RCT or RET hotplate to ...
30-7-2017 at 18:33
by: Photonic
Old post etiquette?
I was wondering what the etiquette is for old posts. In particular you see many posts that have comm ...
18-7-2017 at 07:05
by: Photonic
Pressure Swing Adsorption - Designing an Oxygen Concentrator
[rquote=482829&tid=73950&author=Melgar]A friend and I were looking to build one of these not ...
9-5-2017 at 16:37
by: Photonic
Pressure Swing Adsorption - Designing an Oxygen Concentrator
I am working on a design for a PSA Oxygen Concentrator and need some guidance. In particular where t ...
9-5-2017 at 14:44
by: Photonic
Isopropyl Acetate
I was hoping someone who has synthesized Isopropyl Acetate can tell me if my results are similar to ...
24-1-2017 at 23:22
by: Photonic
Hotplate Stirrer Design Project
I think this is a cool project, however, I think you're probably way low on the actual cost, althoug ...
24-12-2016 at 01:56
by: Photonic
Looking for thoughts on my product ideas!
I've been working on designing some products that I was thinking about having produced mainly becaus ...
29-6-2016 at 10:42
by: Photonic
I would like to sell some glassware, and maybe find someone to split a few orders with.
I now have 1 more 500mL Separatory funnel in stock as of yesterday. Asking $60 for it as the cheapes ...
25-6-2016 at 10:44
by: Photonic
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