How to make a ph meter

Well I was sittin around smokin toyin around with the google i'm feelin lucky search and found this I have no use for it but I figured someone who did electronics umm this would be like right friggin up your ally A tiny and accurate pH-meter: from schematic to calibration

Awesome find! I love these type of projects.

cool, thanks man,REP +

I feel like a dumb fuck when i read threads like this where guys can make this klinda stuff.

panhead said:

I feel like a dumb fuck when i read threads like this where guys can make this klinda stuff.

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lol, some people are gifted in certain areas i can build this, but i dont have the patience/attention span to read Shakespeare.

the easy part is putting the pieces together, the harder part is engineering the circuit

panhead said:

I feel like a dumb fuck when i read threads like this where guys can make this klinda stuff.

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i feel ya on that. if i tried to make that i would probably end up making something that would make me sterile...somehow

Come on guys, it doesn't need any special knowlege but a little brain power and use of a soldering iron. I find these kind of projects are fun to do, especially when high!

Doing those types of projects high always means lots of de-soldering in my case.

MsMILFweed said:

Come on guys, it doesn't need any special knowlege but a little brain power and use of a soldering iron. I find these kind of projects are fun to do, especially when high!

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When your old enough to remember when most homes did not have televisions building little shit out of transistors is a brain scrambler .

I can fix shit that runs on vaccume tube's though .

Yes the project seems quite easy; for you rocket scientists.
Dumb fucks like me go to Homedepot and buy the combo ph, light, and moisture meter for $8.
No batteries required cause that might be too complicated for me too.

panhead said:

When your old enough to remember when most homes did not have televisions building little shit out of transistors is a brain scrambler .

I can fix shit that runs on vaccume tube's though .

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I still work with vacuum tubes. (and I can actually spell 'vacuum. One of the few words i *can* spell. Just jabbing ya)

Oh yes, I'll get right on it! Durr my brain hurts.

BigBudBalls said:

I still work with vacuum tubes. (and I can actually spell 'vacuum. One of the few words i *can* spell. Just jabbing ya)

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I cant spell shit

What do you do with tubes ?

panhead said:

I cant spell shit

What do you do with tubes ?

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LOL. me neither

They fire/control current on the plasma tubes for a CO2 laser. Some use solid state, others RF. But mine are generally DC. (-23KVDC @ 1 amp)

Cool link. It would probably be a really cool project to build but using it in real life would be a total pain in the ass since you have to recalibrate it every time you use it, "The two other potentiometers are used for calibrating the pH meter before each use using known pH solutions."

Plus it costs about 100 euros, "You now have a tiny high-accuracy pH-meter that costs less than 100 euros." For that amount you could buy a good, self calibrating pH meter.

All that being said it does look like a fun project for someone into electronics but it's just not very practicable for everyday use. The reason it's so good for classrooms is you WANT your students to learn how to calibrate devices...

in all practicalities it is a bit more of a pain in the ass than buying one but for people who like projects and like to be able to just tinker with shit it is really neat. I got a bunch of rep from this so i mean somebody had to find it useful enough to do that