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  1. stspringer

    1.5 volt bulb won't light in my circuit newbie

    Thank you for your reply. So can you tell me how to get it to work so I can learn. What do I need to do? What resistors should I be using? Thank you .
  2. stspringer

    1.5 volt bulb won't light in my circuit newbie

    My bulb reads .7 ohms sound right? its a miniature lamp 1.5 volt 0.3a bulb
  3. stspringer

    1.5 volt bulb won't light in my circuit newbie

    current on bulb .306 a volts on voltage divider 1.5 v
  4. stspringer

    1.5 volt bulb won't light in my circuit newbie

    Steve my amps are .306 on the light bulb with 1.5 volt battery volts with voltage divider 1.5v current draw on 9 volt battery with voltage divider 1.8 a not sure I did it right testing current draw on 9 volt battery, battery was getting warm and amps kept going down
  5. stspringer

    1.5 volt bulb won't light in my circuit newbie

    I just measured my resistance on my 1.5 v 0.3A bulb and it was 00.8
  6. stspringer

    1.5 volt bulb won't light in my circuit newbie

    Hello Steve, The bulb is 1.5 volts. I can light it directly with a 1.5 volt battery. "Then measure the current drawn from the 9 Volt battery when your voltage divider is connected" I will try this.
  7. stspringer

    1.5 volt bulb won't light in my circuit newbie

    Hi AnalogKid, Thanks for your reply. Here is the schematic. I will now try to digest what you posted. LOL
  8. stspringer

    1.5 volt bulb won't light in my circuit newbie

    Hello all, Here is what I have: 9 volt battery - VCC breadboard 1 - 10k resistor 1 - 2k resistor 1 - 1.5 volt light bulb I read 1.5 volts output with my digital meter, but for some reason the light bulb will not light. The light bulb is good, I can light it with a 1.5 volt battery. I get...
  9. stspringer

    traffic light australian with 2 555 timers

    So this is the fix right? Here is a further description of how the circuit works: Both 555's are wired as oscillators in astable mode and will oscillate ALL THE TIME when they are turned ON. But the second 555 is not turned on all the time! The first 555 turns on and the 100u is not charged...
  10. stspringer

    traffic light australian with 2 555 timers

    So this is the fix right? Here is a further description of how the circuit works: Both 555's are wired as oscillators in astable mode and will oscillate ALL THE TIME when they are turned ON. But the second 555 is not turned on all the time! The first 555 turns on and the 100u is not charged...
  11. stspringer

    traffic light australian with 2 555 timers

    Hello Jorgo, I did go to the site "Talking electronics" I see the schematic with the explanation. Thank you http://www.talkingelectronics.com/te_interactive_index.html
  12. stspringer

    traffic light australian with 2 555 timers

    I will try thanks
  13. stspringer

    traffic light australian with 2 555 timers

    Well that was my original assumption. Can you help me figure it out? Can you somehow, in nwebie terms, or a drawing, show me where you would place the wires? Thanks
  14. stspringer

    traffic light australian with 2 555 timers

    So you are saying that I found a broken schematic?
  15. stspringer

    traffic light australian with 2 555 timers

    I am in Buffalo, NY where are you located? AnalogKid I now you are trying to help, and I appreciate it, but you are going way too deep for me. The sch is not how I would do it but the only thing missing is decoupling capacitors across the 555 power pins So you are saying that I found a broken...
  16. stspringer

    traffic light australian with 2 555 timers

    Ok let me explain where I am coming from. I am a total newbie, I am just trying to learn how to transfer from a schematic to a breadboard. I go on the web and find a schematic that looks interesting, and not too complicated for a beginner. I assume the schematic, in this case a traffic light...
  17. stspringer

    traffic light australian with 2 555 timers

    Sorry, all I have is this schematic which I uploaded. I thought it should work if I hooked up the wires as shown in the schematic.Could you get this to work if all you had was a schematic some one handed to you? Then you would change things perhaps to change the times you mention.Or am I way off...
  18. stspringer

    traffic light australian with 2 555 timers

    Hello all, Hope someone can help me. I can only get the green led to turn, off and on, the red and yellow stay on constantly. I tried many times to no avail. Does anyone have a link to where I can see the actual wire hook ups? I am a newbie going nuts. Thanks
  19. stspringer

    Newbe Help with this schematic

    Thanks to all
  20. stspringer

    Newbe Help with this schematic

    Hello, I am a newbie don't forget :) you are speaking greek to me.
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