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  1. CDRIVE

    Coils

    The larger the wire size for 'n' turns on an iron core the more powerful the magnetic field will be. It will also demand more current from your power source. Chris
  2. CDRIVE

    Help Needed: 12V SLA Battery to Charge a Phone

    I don't uderstand this. How are you going to charge a 12V battery from a 5V charger? Chris
  3. CDRIVE

    Help with Skin Resistance Output

    Just a suggestion but it would make things easier for everyone, including Harald, if you populate your schematics with values. ;) Chris
  4. CDRIVE

    My frustration as a technician..

    Wow, snow in May! Yesterday, Tropical Storm Andrea passed over us. It was weird! My location only received sporadic wind gusts and a sh!t load of rain. In between the rain were long periods that I can only describe as what the Triassic must have felt like. The Sun would try to break though the...
  5. CDRIVE

    why 1K resistor

    This is not a good design. Operating half of the bridge as an Emitter Follower (Common Collector) is going to run those transistors very hot because they can't be saturated. Chris Edit: Since these transistors are Darlington's the problem is magnified.
  6. CDRIVE

    My frustration as a technician..

    What is that white stuff?? Chris
  7. CDRIVE

    My New Toy

    Thanks Steve. Chris
  8. CDRIVE

    a simple noise filter, L or C

    Biasing a JFET like a BJT is rather odd. It's putting it nearly outside its linear region. Chris
  9. CDRIVE

    need help to understand a circuit

    Thanks for the reply. Chris
  10. CDRIVE

    My New Toy

    Thanks for the BD wishes mates. 39 years with absolutely no regrets. It's hard to find a woman who finds joy in just pleasing you. Honestly, we can be at a restaurant where I've ordered something that I regretted. Marilynne will say "Here take mine. I know you love this". Chris
  11. CDRIVE

    Vacuum Tube (Valve) Amplifiers

    Maybe a missing decimal point? :D Chris
  12. CDRIVE

    charging internal battery in led light

    Where in those photos does the battery and the mains tie in? Chris
  13. CDRIVE

    need help to understand a circuit

    I'm curious. Is your circuit supplied in an 'Examples' folder within ISIS? Chris
  14. 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"...
  15. CDRIVE

    My New Toy

    Yes, I love my Trek Pure. The wife? ....She's always right behind me just like good, obedient Japanese wives are. :D Now that's the best image that's ever been sent to me for my birthday. It's so ME!! :D By the way, some time back a comment was posted about popping by and having a few...
  16. CDRIVE

    Trying to make analogue sound to lcd?

    I read this ... and posted this... Then I saw an advertisement on the boob tube selling a battery powered LED lantern modeled as an old time kerosene lamp. The best part of this commercial was when the announcer proclaimed that this lantern will provide light for 100,000 hours! Yes, I know...
  17. CDRIVE

    need help to understand a circuit

    Bob, I think you're correct. After I posted that I opened my ISIS, which I rarely use, and took a peek at the available motor models. I should have loaded them to read the properties. I didn't. :o Statement retracted. ;) Chris
  18. CDRIVE

    My New Toy

    Yesterday was my 67th birthday so I found it rather poignant that my odometer turned 2007 miles the same day. I'm still deeply in love with her. Chris
  19. CDRIVE

    need help to understand a circuit

    That is not a servo motor or servo motor control circuit. Chris
  20. CDRIVE

    Trying to make analogue sound to lcd?

    That's funny!!
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