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  1. kellys_eye

    Planer Problem - 1980s Wadkin Bursgreen BAOS planer

    I suspect - but can't confirm - that the inverter can detect power in each of the phases. It may be that the detector in the yellow phase is faulty(?) therefore the unit is unable to recognise a full power situation and keeps feeding power. That said, if one phase is missing I don't see how...
  2. kellys_eye

    have motor turn an oval platform

    I've read it twice (three times now) and still can't figure out what the OP is asking! Are these 'mini people' or is it being fixed in a 'mini' (car)? Are you from a family of pygmies (your people being only 7cm)? Is the shape with the arrows a round disk or an oval? What's the meaning of...
  3. kellys_eye

    Planer Problem - 1980s Wadkin Bursgreen BAOS planer

    How does it do that? How does it discern between the two motors (feed and cut)? With two motors effectively paralleled - and assuming they are of different ratings - it might detect the switch-on surge of the main (cutting) motor and calculate the power that it requires BUT when the other...
  4. kellys_eye

    Planer Problem - 1980s Wadkin Bursgreen BAOS planer

    Middle contact of the top three looks to be very dodgy (arcing?). What state are the rest of them?
  5. kellys_eye

    Remington Shaver HC6550 not to full Power

    More accurate but SLOWER......
  6. kellys_eye

    Remington Shaver HC6550 not to full Power

    Sounds (and looks) about right. 4.07wH is simply the voltage multiplied by the capacity. You can try measuring the actual physical length (65mm) and if it's 'over' (by only a mm or so) then the battery may include the internal protection I mentioned. Another way is to carefully peel away the...
  7. kellys_eye

    Random digital potentiometer driving

    Like Hevans above (not an expletive!) I 'gave up' on programming (at least at assembly level) with the introduction of the 286 and have tried, on multiple occasions, to re-educate myself with processors using the likes of the Arduino. I find it far more pleasurable to cobble together hardware...
  8. kellys_eye

    Remington Shaver HC6550 not to full Power

    Those are lithium batteries and 4.2V (per battery) is the correct, fully-charged voltage so they aren't the 'problem'. The 12V 1.2A notice is the supply voltage to the internal circuitry which will have onboard battery charging functions that uses the 12V to deliver the correct charge...
  9. kellys_eye

    Ground plane PCB

    Conductors connect individual components on the board to create the circuit. The ground plane is (usually) the largest area of 'whole' copper and electrically connected to ground - as such it may connect to many of the individual component parts themselves too.
  10. kellys_eye

    reduce volume of quartz wristwatch beep

    Bluetack - that sticky stuff used to fit poster to your bedroom wall....... tiny ball squished onto the rear of the transducer will 'kill' the volume instantly.
  11. kellys_eye

    Random digital potentiometer driving

    Using decade counters (4017) is 'wasteful' - going binary allows the use of fewer devices but a massive multiple of the steps you can generate over a decade device. i.e. a 2^8 binary counter (one device) gives 256 steps - this would require 26 type 4017's! Consider a sample-hold circuit...
  12. kellys_eye

    Hameg HM8122 frequency/counter

    First, determine whether the display is multiplexed or not. If it's multiplexed and the rest of the display is working then you likely have a dud display. If they are driven independently you will need to chase the decoding (usually hex-to-7seg decoders). In this case I suspect a simple dry...
  13. kellys_eye

    Vangelis has gone

    Been a while since I listened to any Vangelis tracks but his passing is an opportunity to reacquaint myself with his work. I shall have a listening session tonight. Sad to hear of his dead but you can't stop entropy! Commisserations to those he leaves behind.
  14. kellys_eye

    Peltier problems (not cooling down)

    At that level of wattage you must have a fan to dissipate the heat from the heatsink. Link to images denies access.
  15. kellys_eye

    Random digital potentiometer driving

    Radio stations are at defined spacing (9/11kHz for AM, 2.4kHz for Ham Radio etc) and choosing a 'random' tuning voltage - presumably via varicap tuning - will most likely miss the stations. Tuning 'steps' in this case will have to be very 'fine i.e. many of them.
  16. kellys_eye

    Help repairing car stereos: Delco 90's CD & tape player

    Can only sympathise with your plight. Service information is getting harder to access by the day. The citing of IPR (Intellectual Property Rights) is the bane of engineers everywhere. I admit to actually PAYING to download service data in the past - something I abhor since this is simply...
  17. kellys_eye

    Coronavirus transmission prevention device.

    This is the same TV News that tells us CO2 is going to destroy the planet. The first thing any educated person does is ignore the MSM. They are propagandists for the Government and Globalist policies. Trust the judgement of your own eyes and ears. I see 'no dead in the streets', no...
  18. kellys_eye

    Problem regarding DFU/RESET switch not working.

    What are you 'doing' with the reset pin? Is it a pull-up or pull-down input? Are you using a switch (i.e. pushbutton) or an electrical signal?
  19. kellys_eye

    Multiple LED Driving

    A chain of paralleled R/LED arrangement will work, where the resistor (R) is calculated for the chosen LED colour using the standard formula. Inefficient imho. Use an old Laptop/Monitor with the LCD panel removed (i.e. just use the backlight and the diffusers) and mask the areas to be...
  20. kellys_eye

    Coronavirus transmission prevention device.

    The most abused 'consensus' is, of course, CO2 is harmful and that man made climate change is going to end humanity (by 2050 apparently).
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