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  1. C

    Photoflash capacitors and Charging

    How long to charge them? With just 2 aa batteries? ... never Not dangerous at all without extra circuitry
  2. C

    ElectronicsPoint Facebook Group!

    Reason for lack of photo... pure lazyness :) A group is limited vs this forum very limited infact, it would purely be a place for to go when this site is having problems (server/dos attack/or just a scripting error) and the odd electronics problem, but i don't believe for 1 second it could...
  3. C

    ElectronicsPoint Facebook Group!

    As i pointed out in the original post, it's more for issues with this site, upgrades, downtime, it's hardly the right place to be able to replace a dedicated forum... From a legal standpoint anyone can make that group, i have no intention of it despite your overly sensitive concerns
  4. C

    ElectronicsPoint Facebook Group!

    Cool, but your thoughts? Good/bad/stupid idea? :)
  5. C

    Part Identification

    Totally tubular!
  6. C

    ElectronicsPoint Facebook Group!

    Whoever owns/hosts/runs this site, any chance of starting up a facebook group? If not i can... I think it would be handy for the times this forum has issues/downtime/upgrades etc.. Thoughts?......
  7. C

    Charging lead acid battery

    I float charge at 14.2v never had a problem
  8. C

    Smoked capacitor

    If the caps were in the 10000uf+ range i'd bleed it, if you're unsure use a multimeter
  9. C

    Smoked capacitor

    Screwdriver's quicker :)
  10. C

    Light automation system

    Getting someome to do your homework without putting in any effort is unhelpful
  11. C

    Light automation system

    As you said logic gates and a 555
  12. C

    Charging lead acid battery

    How simple?
  13. C

    name of this part

    A drill?
  14. C

    How does this work?

    The 555 is pretty easy to understand if you understand how it works To me, one of the harder chips to understand is a phase locked loop, i've tried to get the damn thing working several times lol
  15. C

    Someone please help clicking relay

    Before you removed it, i would simply place my finger on top of each relay until i felt the clicking Check fet502 and the other transistor (see if you get any shorts) Maybe, can't tell from the picture but there looks like a bridge rectifier next to the fet502 ? If so check that as well, when...
  16. C

    Someone please help clicking relay

    Clicking and failing to stay energized makes me think the power supply is failing
  17. C

    Can't identify if transistor is PNP or NPN?

    I made a rule... npn (n)ot (p)ointing i(n) Pnp (p)ointing i(n)
  18. C

    Problem with my music player

    A ground loop is 1:1 ratio transformer to stop hum and other things If that is the problem placing a larger capacitor across the voltage rails will reduce the clicks and hum (i've never had this issue with the pam amplifier)
  19. C

    TLC5940 + TIP120

    Why use the tlc5940 when a shift register like the 7hc595 does what you need, the beauty of the tlc5940 is so it can drive the led at the right amount of current 7hc595/tip120 is a better combo
  20. C

    Problem with my music player

    I'm suspecting there's not enough current available, lowering the volume help?, (on low)
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