scicior

Member Since: May 10, 2006

Country: United States

  • Use an LM317 adjustable voltage regulator to modulate the supply voltage of your oscillator to make an AM transmitter… When you realize the LM317 is just trying to keep it’s output 1.25V above the ‘ref’ terminal, you can use it for all sorts of things it wasn’t originally intended for… - Steve

  • Back in 7th grade I was arguing with a friend what was more elegant; hex or octal. After he pointed out that after memorizing the binary representation of the 8080A instruction set, for the move, add, compare, etc, instructions, some of 3 bit fields (which can easily be represented in octal) always map to the same register. Oh, and using a 7447 TTL chip to represent a hex number on a 7 segment display just looked stupid…. couldn’t argue with that. - Steve

  • Any idea how high of a pressure the Bosch/Sunpro 7577 sender can read? Since replacing the 7 HP motor on my air compressor with a 3 phase motor and VFD, I am a bit worried what might happen if the motor fails to turn off, and would like to add some redundant protection circuits…

  • Edison is new and has had a very lackluster documentation out of the gate.

    Isn’t that typical of Intel?

  • I love the Lego brick for comparison!

  • I was so hoping that he would have to wear those hearing protectors hanging up behind him…. but alas, it appears that the hissing of the air, and squeal of cheap angle grinders were louder than the sirens….

  • Why, oh why (!) didn’t you include the ability to have a small coin cell to back up the RTC???? I’ve been asking for this for years!!! Yes, the entire device can run of a LiIon battery… but all it takes is a header to add an optional coin cell (or even the pads for a header!) to make it so that the RTC is useful!

  • <sigh…> I can see most (younger) people’s opinions that they think multi-meters have always been yellow…. and this by no means makes me an expert, but I’ve been using Fluke multi-meters since the late 80s, and yes, the yellow ones give me the feeling of trying to look like a Fluke. Just like all the generic brands at the grocery store sitting right next to the ‘common’ brand. I in no way confuse them with the real thing… mostly because everyone does it and it’s pretty obvious the difference between a $15 meter and a $400 meter. But yes, it is a pretty crappy thing for Fluke to do. I can’t believe that the import agents are the ones responsible for identifying ‘look a likes’, I bet Fluke has someone full time googling “yellow meter” and gathering a list to turn over to the import agents to ban. Too bad that person couldn’t warn the other seller (such as SparkFun) first and give them a chance to change their colors… Yea, Fluke, you lost a lot of Karma points today…

  • “Remember, if you (use to) get a good measurement, it must be a Fluke!”

  • Don’t ask me why, but I use to have a bad habit of collecting aircraft alternators… I had a couple dozen of them. The only two non-military ones I had were from a 737. Are you willing to provide a link to the manual you found for this engine? I’m too lazy to look it up myself, but if you do, I’ll take a look to see if I ever had any alternators that bolt up to your engine. If I did use to own one, I know who owns them now and he may be willing to part with it. And it won’t cost much; I sold them to him at pretty much scrap value (I needed the room for more hording :-) A bit of trivia; the air craft alternator shafts have a narrowed down portion to act as a mechanical fuse. If something shorted out the alternator, you don’t want it to kill your engine and take down the plane.

    • Steve

No public wish lists :(