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  1. Martaine2005

    Not getting the ideal 555 output

    Can you make it larger please? Can'y see a darn thing..:D
  2. Martaine2005

    Not getting the ideal 555 output

    hey Varun. just found this on the 555. I don't know if it applies to you but it does switch the high to a low. Pin 6: Threshold – also the negative input to the second internal comparator; it resets the internal flip-flop when the voltage applied to it exceeds 2/3 of VCC, causing the Output to...
  3. Martaine2005

    Not getting the ideal 555 output

    Ah yes, missed the link above U3.
  4. Martaine2005

    Not getting the ideal 555 output

    Hi Varun, Just out of curiosity, have you tried the reset to high instead of low?
  5. Martaine2005

    Not getting the ideal 555 output

    Nope...Haha..This is me.
  6. Martaine2005

    Not getting the ideal 555 output

    Oh dear.. Me making things bigger for you will have people talking...:rolleyes:
  7. Martaine2005

    Not getting the ideal 555 output

    Is this any better?
  8. Martaine2005

    Finding Projectors?

    Ah, thanks for the reply. Now I understand. And erm, sorry I have no idea where these would be sold. Good luck in your search. Martin
  9. Martaine2005

    transformer identification from Crosley director model CR2405C stereo

    Hi Banjomaniac, I replied to this here Martin
  10. Martaine2005

    Could use some experts insight into identifying connector type.

    I think I have identified the connectors.. Molex slimstack connectors seem to be the way to go. Have a look HERE Martin
  11. Martaine2005

    gas detection system

    Perhaps he is fed up with the dog getting the blame..:p
  12. Martaine2005

    LC Oscillator

    I am still very impressed, I couldn't even work that out WITH a calculator. Martin
  13. Martaine2005

    Finding Projectors?

    Hi, excuse my ignorance, but what is a breakout version? Is it the 'module' or 'board'. as opposed to buying a commercial item? Thanks. Martin
  14. Martaine2005

    transformer identification from Crosley director model CR2405C stereo

    That does sound like a loose / bad connection. I would open it up and check the connections from the board to the speakers first. It could just be a connector is loose. Have you tried headphones when there is no sound from the speakers? Alternatively, when there is sound, move the unit or lift...
  15. Martaine2005

    HELP IN LIGHT TRACKING CIRCUIT.

    Hi, I think you will be asked to post a schematic of your circuit. Martin
  16. Martaine2005

    help adapting a transformer to battery external laptop battery charger cable

    Where on earth did that come from? You clearly have no idea how to eat pretzels or for that matter a salad!! Salt only goes on my tomatoes and cucumber... And pretzels are first smashed in the bag and poured into the mouth after a sip of beer!!!! GEEZ.... Martin
  17. Martaine2005

    Female barrel connector

    Hi, I believe the part you require is a 'DC jack plug'. Take your laptop to an electronics shop so you can find the right size DC plug. Oops, just noticed your in the UK.. Maplin have them... But still take it with you for the correct size. The picture is to show that there are many to choose...
  18. Martaine2005

    Could use some experts insight into identifying connector type.

    Hi, I have also been searching too. The closest I could find was mobile phone ribbon connectors. More specifically, the iphone lcd to pcb connectors. Or something like this..Picture The search terms F4S socket seem to give better results for a similar connector. And that is my Ex Spurt...
  19. Martaine2005

    help adapting a transformer to battery external laptop battery charger cable

    NO, the transformer you just posted wont do the job..It is AC input and AC output. Your Toshiba one is better suited. AC input and DC output. Pay close attention to AC and DC when tinkering. Or you will damage the item being powered. Although some batteries can be charged via AC, the laptop...
  20. Martaine2005

    help adapting a transformer to battery external laptop battery charger cable

    It is called a 'DC jack plug'. Martin
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