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  1. screwball

    What vibration sensor for bearing monitoring

    Hi, I am looking for a vibration sensor which would be suitable for monitoring bearing condition, the only sensors I can see are listed as tilt sensors or switch on shock, any pointers in the right direction? Thanks,
  2. screwball

    LCD is Dim

    Hello, I have a 16x2 Midas LCD which is VATN, the problem I have is that the display is very dim (camera actually pics the display up better than my eyes). The LCD is new and I have had it working perfectly on a different LCD (not VATN). The part is MC21605G12W-VNMLW The VO pin is fed by a 10k...
  3. screwball

    Computer/electronic integration

    Good evening, Not sure if this is the right place, however, I am wondering if anyone knows how I could integrate live data from a computer to output to an external electronic circuit board or something like that. For instance, have something produce a file with contents 00101001 (a piece of...
  4. screwball

    Mains Timer off delay

    Hi, I've been looking at making a mains powered (230vac) timer off delay. I can find an ON time delay but not off. Anyhow, I need the circuit so that when powered is first applied, the load will be powered for 20seconds then turns off and does not come back on unless circuit power is removed...
  5. screwball

    Mains electricity to circuit board

    Hey, I've been looking for a circuit that i can use to check if there is power through the mains electricity but dont have a clue where to start, Basically, I want to use a microchip (programmable IC) which will detect when the mains electricity is on/off but dont have a clue where to...
  6. screwball

    Component help

    Hey, I'm looking for a MOSFET that will allow 1000mA typical forward current atleast, voltage between Drain and source will be typically 12v, The fet will be triggered by a PIC10F200 chip, so say about 5v at the gate, Looking for something fairly cheap and fairly widely available, if...
  7. screwball

    SMD Soldering

    Okay, so I put a post up the other day in regards to soldering SOT 23 component and my mind was put at ease, Today i received them and theyre much more smaller than intended, I want to atleast try with them though, SMD allows me to throw alot more in a smaller space. Also, i ordered 500 x...
  8. screwball

    SOT 23 component soldering?

    Hey, I ordered NPN transistors and only realised they are sot23 after i paid so very small component.. How easy would it be to hand solder onto standard through hole stripboard? I'll be using a soldering iron with small bevel tip (no other tips atm)
  9. screwball

    Career advice?

    Hello, I'm currently studying as an electrical and electronic engineer (NVQ Level 3). I am a little unsure of what I want to do after completing the NVQ L3 in electrical and electronic engineering so thought someone on here could possibly help? Basically, I want to know what i should do after...
  10. screwball

    What component? - quick one

    Hello, just a quick one, Just trying to identify this component, it has 3 pins and black square casing like a FET its labelled, "NE22 I(diode symbol)R9641 F1 C5" Any idea? there was 4 of them on a heat dissipator so id imagine some sort of switching device or use as a bridge...
  11. screwball

    PIC, PICAXE

    Hello, After thinking of projects i can do in spare time i was thinking a play again on PICs would be cool, What PIC stuff should i get (Chips, software, download board/programming board etc) I currently have circuit wizard simulation software but it doesnt support simulation of the PIC...
  12. screwball

    UPS system

    Hey, not a clue what section this would go in so mods please move if need-be, Basically Im looking at making my own uninteruptable power supply using deep cycle 12v batteries. Ive got an idea on the main of how the system would work however im abit unsure of calculations i may have if someone...
  13. screwball

    Help asap

    Hello, I am testing components before making my final alarm circuit but i have a problem, Im testing logic gates atm (an 4input OR gate) and i am wiring pin 7 to 0v and pin 8 to 9v as supposed to, then obviously pin 1 to the led and then the return side of the led to 0v, but the led lights...
  14. screwball

    Alarm Circuit

    Hello, Im looking at making an alarm circuit using a 1-9 keypad, I know how to do it but not what to do it with, I would do it with PICs but i dont have circuit software that allows me to use pics, Im looking for a component (IC) that remembers which keypad number was pressed then it...
  15. screwball

    resistor rating help

    Hello, Im using a 100ohm resistor which is 1/4 watt max the power i am using is 6v DC Mains and i am powering a 0.25amp PC fan, is the 1/4 watt max enough or does it need to be higher? Gary
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