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  1. SparkyCal

    Series or Parallel?

    That would be like asking me to bend the fabric of space/time. Lol. Besides, with a band, the mic would pick every thing up
  2. SparkyCal

    Series or Parallel?

    Thanks Bluejets I should better articulate my goal. The idea is to put a surround around my guitar pickup; much like putting a frame around a picture. On that frame will be leds so that when I flick a switch, the leds will blink. I had not considered the battery drain. The only saving grace is...
  3. SparkyCal

    Question about new schematic- Metronome

    Thanks AG and Bertus. I will try it again. The power supply is good, less than 4 months old.
  4. SparkyCal

    Series or Parallel?

    I have determined that I will be using 12 LEDs. All of them have the following specs: I/VF: 20mA/ 3-3.2V
  5. SparkyCal

    Series or Parallel?

    I am circling back to a project I undertook when I first got into electronics. The project is to install a ring of LED lights around my guitar pickup. I envision powering the lights with a 9 Volt battery. I probably will use 10 LEDs or so. I realize that I will need a step down resistor...
  6. SparkyCal

    Question about new schematic- Metronome

    Well, that one did not work as well. So either I'm defective, or thre circuit is- both are possible. lol @AG...I am offended at the rat nest comment...lol- kidding. I wired it twice since then, with all the components- and it does not work. Maybe the timer thing is the defect. But I'm sure I...
  7. SparkyCal

    Question about new schematic- Metronome

    Going to try this one. It looks lien it is almost identical: https://www.instructables.com/555-Timer-Metronome-Audio-Visual/
  8. SparkyCal

    Question about new schematic- Metronome

    @AG. I agree. Something is shorting. I may have to find another schematic because despite trying different cap values (Bertus- I just swapped out various values), the LEDs light but don't pulse. Perhaps an alternate schematic may be the next move.
  9. SparkyCal

    Toast or Useable

    Thanks Martin. We do have an airport in our city, but it’s not close to me.
  10. SparkyCal

    The New Model

    Here is some pics of the most recent build. https://drive.google.com/drive/folders/1E_GpIkIfLK2uej8R_NHm_i2Dmr6UpUuO?usp=sharing
  11. SparkyCal

    Question about new schematic- Metronome

    Hi Bertus- yes, the capacitor is the right value. However, I noticed errors in my wiring and that I had missed the second capacitor. When I re-wired it however, it still does not work . I have a purple and a green LED that have thre same ratings. Te purple one lights up and dims when I turn the...
  12. SparkyCal

    Question about new schematic- Metronome

    Here is a pic
  13. SparkyCal

    Question about new schematic- Metronome

    Thanks Bertrus. I breadboarded it and it is not working. The two LEDs light up, but there is no pulse. Rather, when I turn the pot, one of them brightens and dims with the turning of the pot, and the other does not seem to do much, but it is lit.
  14. SparkyCal

    Question about new schematic- Metronome

    I am attempting to build this metronome on a breadboard. https://www.thatraymond.com/2019/04/22/555-metronome I have an initial question: You will see a 100K and 18K component in the schematic. There is a line crossing out the initial values. I assume this means that the builder tweaked the...
  15. SparkyCal

    Just When I Thought it was Going to Be Easy

    I ordered 30 plastic dc barrels. That ought to make things easier
  16. SparkyCal

    Requesting Ideas for my Next Venture

    I think I’m going to try building the one in the second link. Going to breadboard it first. Thanks again Bertus.
  17. SparkyCal

    The New Model

    I have a newer build that looks better. I will post it when I get a chance. I’ll license it to you. Lol by the way, this model, in my line of designer pedals, is called “The Jorneyman”
  18. SparkyCal

    Toast or Useable

    Thank-you Bertus. Here is a link to the user manual. https://www.manualslib.com/manual/184932/Uniden-Bc246t.html?page=9#manual The frequency coverage starts at page 9 in the manual, I n vcase anyone wants to see the manual. I don't know much about frequencies. Given today's environment...
  19. SparkyCal

    How Can I Resist?

    Harald- I may go with your schematic. I am not planning to use a battery at all. It will be powered through a DC barrel.
  20. SparkyCal

    How Can I Resist?

    Thanks guys. The additional leds are just for aesthetics. I can revert to only one, if it will cause a voltage drain challenge. Having three is not important.
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