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  1. kellys_eye

    Pioneer SX-SW515 - missing controller.

    It may be... sadly the only manuals I can find online to see the technical spec etc are from 'pay' sites and I abhor such policies and refuse to use them. If the IR receiver is in that remote module then you're stuck with sourcing one.
  2. kellys_eye

    Op Amp with a/c output

    I'd refer posters to the original thread.... The signal required comes from a speed sensor and is (probably) used to adjust timing, fuel injection etc so needs to follow the engine rpm else the emissions produced would 'fail' the vehicle anyway. It's not an 'AC' signal either. It's DC (with...
  3. kellys_eye

    What does your workshop / workbench look like?

    ...and others have a fetish :D I don't think this thread is meant to be a competition - just a friendly 'being nosy' kinda thing.
  4. kellys_eye

    Casio WK-3000 no power on adapter but power on batteries

    Where are you putting your meter leads to make these measurements?
  5. kellys_eye

    Pioneer SX-SW515 - missing controller.

    There is a remote control available for tha device that looks like your standard TV remote - nothing like the 'display' that plugs into the port but since that particular device will be as rare as rocking horse sh1t you could do worse than get a normal remote and use it with that - only $20 or...
  6. kellys_eye

    Ultrasonic Transducer Driver adjust frequency

    The output transformer is usually 'tuned' to the transducer (resonance) as the drive voltage is considerably higher than the supply voltage and, as a result, you can't use them at different frequencies.
  7. kellys_eye

    Digi pot for pwm board

    Funny you should ask. If you Google that board it shows a number of different versions, same board layout, same component layout BUT with a 1M pot in place of the 2M pot your image shows....???? It also shows the schematic: The 1MΩ pot shown can easily be changed for a 2MΩ given the range...
  8. kellys_eye

    What does your workshop / workbench look like?

    May I ask... "why not?" :D
  9. kellys_eye

    Flashgun no longer triggers flash

    It's a good sign. Does the light normally change to green when it's 'ready' for use? With the unit powered up you should be able to read a few hundred volts DC across the terminals of the big capacitor - WARNING, keep your hands well away, it can kill.... use a decent test meter, not a $2...
  10. kellys_eye

    Led volt & amp meter broke capacitor

    Suggestive of reverse power connection.....
  11. kellys_eye

    Li ion Battery management system (Mosfet circuit)

    What are the 'fluctuations'? Have you 'scoped them so we can see precisely what's happening?
  12. kellys_eye

    Led volt & amp meter broke capacitor

    What markings are on the capacitor?
  13. kellys_eye

    Flashgun no longer triggers flash

    AFAIK the tubes are just gas-filled. You should be able to hear a high pitched whine as the power is applied and the main discharge capacitor gets charged up. The whine (whistle noise) should start quite strong then increase in frequency whilst diminishing in volume. Takes a couple of seconds...
  14. kellys_eye

    Gould Datasys 770 / 840 / 944

    I've seen your post on the UKVR site too! If EEVBlog and UKVR can't help then you're pretty much stuck.....
  15. kellys_eye

    Creating an digital PB board

    Not an easy project for a beginner, that's for sure. Consider getting a load of cheap digital clocks (your local supermarket probably has a gazillion) and scrapping the cases for the circuit boards. You can then use the clock 'set' buttons (wire in some external ones) to set whatever time you...
  16. kellys_eye

    Digi pot for pwm board

    You could switch a 1M resistor in/out of series with the 1M version that's available or even use a load of 200k resistors and give yourself 10 ranges! Given the variable resistors are all 15-turn presets you'd need to have switched ranges to get any form of accuracy as the 'steps' available on...
  17. kellys_eye

    DIY automated power transfer switch

    The 'authorities' legal position ends after the meter. All cabling and distribution equipment AFTER the supply meter is the ownership and responsibility of the property owner. No one ever suggested that there was any 'irregularities' with the OP's request or the methods used to achieve it.
  18. kellys_eye

    What does your workshop / workbench look like?

    Mine is (currently) a sh1th0l3....:p I started building some garden structures this summer (covered eating area and a summer house) and my workshop is filled to the rafters with building materials as the weather, ever since the wood arrived, has been appalling - typical...:mad: There's no...
  19. kellys_eye

    Multimeter Question

    One of the most popular and well-reported multimeters out there right now is the AN8008 and you can purchase THREE of them for the price of the piece the OP got..... There are numerous reviews of the AN8008 and even Dave over on EEVBlog has praise for this little gem...
  20. kellys_eye

    DIY automated power transfer switch

    Ahhh.... yes, I can read between the lines too.....;)
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