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  1. CDRIVE

    Is AC Theory Getting You Down?

    I stumbled upon this site that contains a nice animated graphic of the relationship between a Sine-wave and a circle. It may be useful for students. http://www.mathsisfun.com/algebra/trigonometry.html Chris
  2. CDRIVE

    My Cousin Vinny (Run capacitors and motor direction)

    I received a phone call from my cousin Vinny today. It seems he has a weird problem with his home's air handler. The Cap Run SPH motor inexplicably runs backwards at times! My question is this... Have any of you guys ever experienced this? Would a shorted or very leaky run cap cause this? I...
  3. CDRIVE

    Roseanne Roseannadanna.. "Did ya ever wonder...."?

    I thought I'd start this thread as something to be appended. I think it's something we've all experienced at one time or another. Let's start with the topic of HELP files. Did ya ever notice that no matter how complete your new software's help files are the items you're needing help with are...
  4. CDRIVE

    Which PicBasic Software To Use?

    Unless I'm mistaken MicroChip's PicBasic software isn't free and seems to be quite expensive. I did find MikroElektronika though, and have spent most of my morning reading their online book, which seems to be exceptionally written. Any opinions from members using this software? Thanks, Chris
  5. CDRIVE

    What The Heck Is He Talking About??

    I stumbled across this webpage where I found this snippet from a PIC forum the author suggests for further reading. No matter how many times I read this I couldn't make any sense of it. Primarily because the OP and the responder are discussing an input state that is verboten in the digital...
  6. CDRIVE

    My Bike Computer (Battery) Died

    My bike computer is a Cateye Urban Wireless. After replacing the battery I lost the odometer reading that was at ~ 4,280 miles. This model doesn't appear to have any option to manually enter a preloaded ODO reading. Since I'm quite proud of this number I'm not agreeable to simply committing...
  7. CDRIVE

    Sketchup 3D CAD

    Has anyone out there been using Sketchup to the point of attaining proficiency? Chris
  8. CDRIVE

    20Lm (1W) Blue Star LED

    My buddy sent me this. Just curious.. Are precautions like this common for these beasts? It reads like handling RA Isotopes! :eek:
  9. CDRIVE

    Schematic For EL12 Turn Signal Flasher

    I just replaced the flasher module on my wife's 1989 Jeep wrangler. Yes, it's been in there since 1989 and 226000 miles. Auto Zone's replacement was an EL12, which is transparent. I could see that it was not a bimetal thermal element but rather electromagnetic, which included a 1600uF timing...
  10. CDRIVE

    Will MS Ever Get Things Right?

    When I discovered that my W7 Home Premium had "Remote Assistance" enabled I un-checked it. When I returned to the control panel to verify the change I discovered that the 3 "Remote Desktop" options on the same panel vanished! I re-enabled Remote Assistance but no go. Like every windows issue...
  11. CDRIVE

    Ever wonder why Windows has more problems than Mac?

    I was searching for why my new W7 64 bit laptop doesn't always hide the taskbar even though I have AutoHide activated. This post isn't about that because I'm fairly certain I know why. No, this topic is more about why Windows sales far exceed Mac and probably always will. Windows problems...
  12. CDRIVE

    Are The Enviromental Wackos Responsible For This?

    Sooner or later cycling becomes so addictive that you'll want to service the bike yourself. This of course requires a repair stand that can suspend the bike while leaving the drive train free. I've observed the workings of the pro stand my bike shop uses and wanted those features. The three main...
  13. CDRIVE

    LC meter accuracy

    It's my opinion that any cap, inductance, or R instruments intended to read very low values cannot have test leads and or alligator clips. They introduce far to much error when reading low values. Low values require direct and solid connections to absolutely stationary test points. The fact that...
  14. CDRIVE

    Why I want my old world back!

    I just saw a commercial but as usual, though I remember the irritating details, I have no idea what they were advertising. Here's the scene... We have a young boy Trout fishing with Grandpa and Dad on the banks of beautiful cold water creek. In the old days the last scene would be the happy...
  15. CDRIVE

    Just like to say....

    This is a reply to Kris from an active topic. I put it here as to not drag it off topic. https://www.electronicspoint.com/need-help-power-failure-alarm-circuit-t254273p4.html#post1565451 Yes, Ron H is a 555 wizard. Sgt.Wookie and others are quite bright too. Brainpower is not their...
  16. CDRIVE

    A Special Place In Hell For Yahoo

    For the last few months Yahoo has been reminding me that they're upgrading their email client and all of us will be sooooo impressed with with our new email. The last time they did this my wife and I begged them to give us back the "Classic" version, which they did. This time I don't think it's...
  17. CDRIVE

    I Think I Missed The Memo

    Has something happed to the space/time continuum? Did I miss the memo? Was there a full blown forum alert that I missed??? Have inmates escaped from a high security insane asylum? If you don't know what I'm talking about you've obviously missed the lengthy string of posts made by a nube on...
  18. CDRIVE

    Vacuum Tube (Valve) Amplifiers

    My buddy Ron sent me these links. For those audiophiles that will not accept solid state this will be like finding Tube Heaven. They manufacture their own! http://www.kraudiousa.com/photos.php As my buddy Ron says .."This is a thing of beauty"...
  19. CDRIVE

    Can You Find Funny Statement?

    I watch quite a few machinist vids on youtube. This gentleman (Halligan) makes some of the better ones, along with Mr.Pete (Tublacain) and Keith Fenner who's one "Can do kind of guy"! Anyway, this Halligan vid is about magnetizing and demagnetizing tools. There's nothing about this video...
  20. CDRIVE

    PIR Detector.... $3.95... Cheap!

    Guys, I get email fliers from MPJA about every two weeks. If you're not familiar with them you should know that some of their items are not stock items. When they're gone, they're gone. The item description usually states this when applicable. Since we get quite a few postings regarding PIR...
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