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Slow high torque electric motors for stirrer? Pins 4 & 5 were terminated and the circuit tested. This did not make any difference. The wiper ...	3-12-2014 at 19:20 by: Magpie
Slow high torque electric motors for stirrer? [rquote=374305&tid=41539&author=Varmint]I'd be tempted to say your 555 might be going flakey ...	3-12-2014 at 18:25 by: Magpie
Slow high torque electric motors for stirrer? I installed a 100k linear pot. In testing it with my ohm meter it gave a range of 1k-100k. It ran ...	3-12-2014 at 12:23 by: Magpie
Black gunk that should be NaNO3 I would say a very slight Dutch accent. Accents vary all over the US. When I was in the milit ...	3-12-2014 at 11:42 by: Magpie
Black gunk that should be NaNO3 [rquote=374195&tid=52464&author=Bert] It is so rare for a person using English as a second ...	3-12-2014 at 10:54 by: Magpie
Black gunk that should be NaNO3 [rquote=374149&tid=52464&author=Jylliana] Maybe, but is nitric acid able to convert the car ...	3-12-2014 at 09:25 by: Magpie
Black gunk that should be NaNO3 If there was any extra un-neutralized Na2CO3 this would be a source of carbon. At high temperature ...	3-12-2014 at 06:14 by: Magpie
Slow high torque electric motors for stirrer? Here are my assumptions for a final configuration: Fix R2 at 1000Ω. Fix C at 0.22µF. Provid ...	2-12-2014 at 22:08 by: Magpie
Slow high torque electric motors for stirrer? I just finished the reconfigure and a successful test using the components I listed in my last post. ...	2-12-2014 at 18:46 by: Magpie
Slow high torque electric motors for stirrer? Great. What I will try then is R1=10k, R2=1k, and C=0.22µF. This should give me 182 rpm.	2-12-2014 at 15:46 by: Magpie
Slow high torque electric motors for stirrer? You are correct. The astable oscillator model gives 600 rpm when the cap is around 0.25µF and R1=R ...	2-12-2014 at 13:47 by: Magpie
Slow high torque electric motors for stirrer? The gear came right off the motor shaft by making 2 longitudinal cuts with the dremel cut-off wheel. ...	1-12-2014 at 19:56 by: Magpie
Slow high torque electric motors for stirrer? More good news: by replacing the 22µF cap with a 10µF cap the maximum speed has been increased fro ...	1-12-2014 at 10:29 by: Magpie
Slow high torque electric motors for stirrer? Yes! Replacing the 47µF with a 22µF cap at pins 7 & 8 yielded an rpm of 100! It is not whi ...	30-11-2014 at 18:53 by: Magpie
Slow high torque electric motors for stirrer? [rquote=373278&tid=41539&author=Varmint] Try changing the timing cap to 1/2 it's present val ...	30-11-2014 at 16:28 by: Magpie
Slow high torque electric motors for stirrer? I set 555 pot at low speed then turned the pot on the board. At first it seemed to increase in spee ...	30-11-2014 at 14:18 by: Magpie
Slow high torque electric motors for stirrer? [rquote=373243&tid=41539&author=Varmint] The thing to do is to raise the voltage incrementa ...	30-11-2014 at 13:02 by: Magpie
Slow high torque electric motors for stirrer? Here's the one I installed: http://www.ebay.com/itm/121427026317?_trksid=p2060778.m2749.l2649& ...	30-11-2014 at 12:04 by: Magpie
Slow high torque electric motors for stirrer? Thanks for those suggestions on removing the worm gear. I'm going to first consult with my machinis ...	29-11-2014 at 13:07 by: Magpie
Slow high torque electric motors for stirrer? Varmint thanks so much for that very complete and well written analysis. I now have some fundamenta ...	29-11-2014 at 08:12 by: Magpie
Slow high torque electric motors for stirrer? The YouTube videos below should be available to the public now. My error was in not toggling the "p ...	28-11-2014 at 14:51 by: Magpie
Clean Ethanol from OTC Yeasts and chemicals Is Turbo claiming an 18% distillation product? That's what people drink, right? So if they are dri ...	28-11-2014 at 14:35 by: Magpie
Clean Ethanol from OTC Yeasts and chemicals [rquote=372680&tid=47945&author=Little_Ghost_again] You can take plain cheap old bakers yea ...	28-11-2014 at 06:57 by: Magpie
Copper carbonate - controlling the colour FYI, here's an old thread that relates some experience on this subject: http://www.sciencemadness ...	28-11-2014 at 06:49 by: Magpie
Slow high torque electric motors for stirrer? Here's a video of the stepper motor operation through its full range of speed: 9.2 to 46 rpm. ht ...	27-11-2014 at 15:52 by: Magpie
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