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  1. CDRIVE

    diode for collapsing magnetic field

    My only point was that the manufacturer expected that switch to survive without BEMF protection. Electrician's supression scheme looks like this. His current wasn't 20 - 30A though. The value of snubber C1 and R1 changes with current draw.
  2. CDRIVE

    Simple 12v power on/off with non latch button?

    It's 0124 hrs and I'm going to hit the sack with that stuck in my head. I hope I don't wake up my bride because I'm having difficulty with uncontrollable laughter. If you come across a parody for "The Wind Beneath My Wings" let me know. :D Oldie but a goody.. Google "Cows With Guns". A friend...
  3. CDRIVE

    Simple 12v power on/off with non latch button?

    We are the world... We are the children.... Ehhh, I never liked that tune. Too sophomoric. Chris
  4. CDRIVE

    Wind Generator

    If you use LED lighting, as suggested by CC, it greatly simplifies your requirements and drastically reduces your power demands. I would think that solar cells alone would be capable of putting enough charge in your battery to maintain intermittent lighting duty throughout the night. I would...
  5. CDRIVE

    LED strobe circuit needs more current

    I guess CC joined with that handle and you had an avatar that needed a home with a good fit. Chris
  6. CDRIVE

    Motorcycle Flasher Issue

    Sorry that those mods didn't help. Perhaps a photo of the board and the interconnects to the bike might help. I think ignition noise is getting in there. It can be very severe and difficult to eliminate. Wire length, grounding points, decoupling cap lead length, all can play a part here. Spark...
  7. CDRIVE

    Beards and Hurricanes

    Wow, that just about confirms what I said about home brew vs off the shelf. It was dark brown in the beginning. What the hell happened?? :confused: :rolleyes: Chris
  8. CDRIVE

    LED strobe circuit needs more current

    It keeps my face warm. I like the idea too. I think it was Dave, Harold or Steve that said CC doesn't really look like a vending machine. :D Chris
  9. CDRIVE

    Hurricane help

    I really must get into the 21st century. I didn't know that! Do they actually drive an electromagnetic speaker? Chris
  10. CDRIVE

    Hurricane help

    This is a bad time to be thinking about hurricane preparedness. Replacing D cells with A, or worst yet, AA cells is not going to power the radio very long. Chris Hurricane Veteran Time In Grade: ///////////
  11. CDRIVE

    Simple Analog Delay Circuit

    Yeah, it's a brave new world. At one time home brew was nearly always cheaper. Not so today. Chris
  12. CDRIVE

    Wind Generator

    Reality is that any alternative (green) home energy schemes will not be viable without batteries included in the system. Most of these systems are devoted to keeping the batteries charged. Chris
  13. CDRIVE

    LED strobe circuit needs more current

    I think you'd be far better of with a 555TLC. Frequency and pulse width are more easily manipulated. The LED load will also not effect these values. One thing though.. As Kris asked, where are you getting a 5V battery? Chris
  14. CDRIVE

    Motorcycle Flasher Issue

    Yes, it's big time overkill for your needs. Your 350mA load would have been best handled with a small power MOSFET. My second choice would have been a TIP120 Darlington. Chris
  15. CDRIVE

    Motorcycle Flasher Issue

    Yes, a 330 Ohm should put you close enough to the ball park. I suspect you will see an increase in the LEDs brightness too. By the way, to give you an idea of how different a 3055 is from a common small signal switching transistor, the 3055 has a max base current of 7A! No, that's not a typo. ;)...
  16. CDRIVE

    Motorcycle Flasher Issue

    See attachment for addition of noise filtering. I also recommend that you lower R2 as shown. Even this value is high for a 3055 but it ultimately depends on what the LED current is in the collector circuit. The general rule of thumb when saturating a transistor is that the Base current should be...
  17. CDRIVE

    Motorcycle Flasher Issue

    Before we go there, what's the specs on the converter? 6-12V converter doesn't tell us much. What's the min-max input range, max output current, input current demands? Do you have a link to it? EDIT: Did you measure the bike's 6V line while the bike was running? Also, while a DMM is slow, you...
  18. CDRIVE

    Who Is This?

    I mean that naked face. Don't you have laws against that in NZ? :eek: Ya have to put some clothes on it or it'll catch a cold! :p I haven't seen my face naked in 38 years. I think I'd scare myself! ;) Kidding aside, I think I like the self pix concept. I'm considering same. Chris
  19. CDRIVE

    Basic Electrical Work

    That's my point. I don't see the purpose for either diode connected to the regulator. The gnd pin diode, when properly wired, will raise the reg output +0.7V but why? This still doesn't explain the other one on the reg input pin. Also, as sop I always employ input and output caps, as per...
  20. CDRIVE

    Who Is This?

    Speaking of self photos. Have y'all seen Miguel's photo? https://www.electronicspoint.com/1-mhz-oscillator-needed-t252719.html#post1502016 If I were to describe this photo it would be as such: There's a gun in his back and the guy holding it is saying.. "If you so much as breath the wrong...
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