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  1. (*steve*)

    Smoothing a charging current for a phone?

    That is simply because as part of the circuit, a capacitor is used to store energy. This is primarily used to reduce the ripple on the DC created from AC, but with little to no load, it will do exactly as you describe. The solution we're suggesting will have capacitors used for this purpose...
  2. (*steve*)

    Change in site ownership

    Similar situations exist in the new layout. Whilst it works in landscape mode, in portrait mode menus appear too far to the left of the screen. The menu at the bottom of each post is almost completely invisible to the left of the screen. A similar situation exists for the thread tools...
  3. (*steve*)

    Teaching people to solder

    Yesterday, I went along with my local hackerspace to a STEAM festival. We had one group that were selling laser-cut trinkets and demonstrating the use of a laser cutter, and the other group teaching people to solder. I was with the latter group. We had kids as young as 4 or 5 learning to...
  4. (*steve*)

    New layout sucks

    The problems with the mobile layout largely disappear when you go into landscape view. However, if I have to use landscape mode it will drive me to distraction. I tend to use the site on a mobile platform 90% of the time these days, so it's pretty important to me.
  5. (*steve*)

    hi fellow hobbyists.. ?about sensors

    I deleted it and then restored it.
  6. (*steve*)

    Converting an existing amplifier into a subwoofer amp

    But he nearly sidesteps that by defining his design a class A. Magic!
  7. (*steve*)

    Simple DC-DC Boost Converter 19.50V(dc) to 20.50V(dc) and 8A for charger.

    You are so far out of your depth @CircuitMaster... Please limit your posts to where you have knowledge to contribute. I have been on the verge of deleting a number of your posts as nonsense. I will be far more active in the future if your posting style does not improve. Unlike you, I have...
  8. (*steve*)

    the twelve days of christmas?

    I was thinking 13*6, but your explanation is better than I would have given.
  9. (*steve*)

    Change in site ownership

    Another detail is that the number of alerts does not show in the new format if you're on a mobile platform.
  10. (*steve*)

    I have a red LED that doesn't light up

    Yeah, that looks damaged. How are you sure that the fault didn't happen when you opened it? Your original question implies the LED worked until you opened it.
  11. (*steve*)

    Light dimmer

    One possible explanation is that the low resistance of the cold filament combined with other circuit elements that either limit current or limit the rise in current may provide insufficient heat to cause it to glow. Once the filament is glowing, it has a significantly higher resistance, and thus...
  12. (*steve*)

    Light dimmer

    Does this happen with bulbs that don't have a filament?
  13. (*steve*)

    I have a red LED that doesn't light up

    Testing to destruction is a valid test. What it's a test of in this case is unknown :-)
  14. (*steve*)

    New layout sucks

    If you go to your preferences you can select the old layout.
  15. (*steve*)

    Change in site ownership

    In the original view, when you hover over alerts, or when you click on it, the alert box appears too far to the left. This is a minor issue on the desktop version, but in the mobile version, part of is is obscured off the left side of the screen. Like that. And all of the drop downs do the...
  16. (*steve*)

    Change in site ownership

    I also just changed back to the old view (just to check it worked). It works :-) After changing, I received notification of replies that I hadn't in the new view.
  17. (*steve*)

    Change in site ownership

    Oooh, all different. I thought I was in the wrong place the first time :-D
  18. (*steve*)

    Need suggestion on whether the PCB design is correct

    I would have placed the fuse in series with the common connection to the relay. The way you have it, there is protection only for the N.O. contacts. I would consider moving the resistor over a little to provide more distance between mains and low voltage wiring. It may also be sensible to use...
  19. (*steve*)

    Increasing Battery life Question

    Maybe 4 2V lead acid cells. Do you know anyone who's decommissioning a submarine? (You probably don't want cells that large)
  20. (*steve*)

    My brand new oscilloscope

    I am VERY careful around it. It doesn't apply a lot of current, but it's still sufficient to kill.
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