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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by chipi

  1. C

    solar blinking LED HELP

    na 100uf even 50uf made very good pulses yes maybe its atleast 20+ years ago . dunt time fly :)
  2. C

    'Variable output' - Power Supply

    if load requires more I and cant have it then u get voltage drop ( short circuit) viceversa . do u want a power supply some thing like a switch mode one that gives u what u need ( computer power supply). all bench power supplys just about sense current (I )needs BUT YOU HAVE TO TELL IT BY...
  3. C

    Need some help reading a schematic

    hi m8 1quater watt ress should be ok there only limmiting current to trani bases you should get components from maplins or get em off ebay. regards
  4. C

    Solar Power LED Array (Dead Simple)

    ( simoin )the equation you need to use is v I*R .( v over i times r ) YOU CAN WORK LOTS OF THINGS OUT WITH THIS. REGARDS
  5. C

    solar blinking LED HELP

    why not use the good old LM3909 CHIP TO BOOST THE VOLTAGE it only needs a small cap to boost the v output to a led and it produces good flashers for 3mth from a AA batt maybe longer.:) and it will fit in a 35mm can .
  6. C

    LED brake light/blinker ideas

    dont think relays are the answer . a couple of AND gates en tranis complement the leds . or maybe a pic micro would make a better project and cud program to do lights plus some cool hazard lights :D .or use a flasher led ,res power trani and the required leds for indicators. and straight leds...
  7. C

    Electrolitic capacitors: max voltage question

    iv always learnt to use atleast double the voltage iv seen these blow :D take an eye out easy .just thought id put my bit in:) .
  8. C

    Question about Capacitors

    arnt these caps just smothers and protectors and the 1m res is that just a stabliser for the resinator :confused:
  9. C

    Lie detector with shock

    ;) hi . i think start with building a quality supply as your circuit is going to be very sensitive :eek: cud end up wi face like this :eek: for telling truth . is it going to be batt or ac ?

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