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  1. kellys_eye

    Ethics of buying electronic modules from Chinese sites?

    Here's a hint. Government are NOT the good guys.
  2. kellys_eye

    Ethics of buying electronic modules from Chinese sites?

    What the Chicoms do to try to undermine the West is not of any concern whatsoever. Your concerns should be with those that PERMIT them to get away with it. Your own Governments could stop businesses off-shoring manufacture, could close borders to cheap imports (or tax them more), could attack...
  3. kellys_eye

    Ethics of buying electronic modules from Chinese sites?

    I don't just believe everything the MSM (especially the BBC) have to say about ANYTHING. And, on the basis of your 'knowledge', you don't know about Dr David Kelly.
  4. kellys_eye

    Please help me use a PWM alternator for a project

    Whilst that PWM generator will deliver an output it won't be able to REGULATE the output without some from of feedback from the load. The output voltage will vary with the load. That's where the CANBus solution comes into its own. If that load happens to vary widely you might end up setting...
  5. kellys_eye

    More than one power supply from one power supply with caps

    Que? Dragon.
  6. kellys_eye

    Ethics of buying electronic modules from Chinese sites?

    As far as data gathering is concerned the Chinese and Russia can't hold a flag to the likes of the NSA, GCHQ, MOSSAD etc. If you don't want your information 'gathered' then don't produce information. Simples! BTW, Putin has never been a threat to the UK or the West in general. Don't believe...
  7. kellys_eye

    Fried PSU for 12v cb radio base station conversion

    The wire for the main regulating (bypass) transistor is missing the emitter connection.
  8. kellys_eye

    Please help me use a PWM alternator for a project

    Would it not be simpler/easier to change the tractors existing alternator for one with a higher output rating? I'm not familiar with that type of alternator but it looks to be fitted with internal electronics for monitoring speed, load, voltage etc via the CANBus system which means you need the...
  9. kellys_eye

    I2C FUNCTIONS FOR PCF8583 RTC IN ATMEL 89S52

    Is that a question? A statement? A query? No idea......
  10. kellys_eye

    Ethics of buying electronic modules from Chinese sites?

    My in-laws purchased a very expensive chandelier from some UK-based lighting specialists. It used around 24 LED type filament bulbs that the chandelier supplier charged £15 per bulb! The in-laws were happy with this as they also got a 'lifetime' warranty for each bulb - hardly surprising since...
  11. kellys_eye

    constant current source with transistor

    My bold. Are we headed in 'that' direction again? The OP seems far too samey-samey as another (now banned) poster who perpetuated the falstad sh*t. Same thought processes too. "Caution Will Robinson".....
  12. kellys_eye

    UT61E multimeter AC measurement issue

    Check the tracks/traces under the rotary range selector switch and pin 21 of U1 - should be grounded under AC measurement situations.
  13. kellys_eye

    Ethics of buying electronic modules from Chinese sites?

    Whist there are undoubtedly many knock offs of western design, China is one of the biggest producers/manufacturers of these modules for the main retail outlets and the stuff you buy 'direct' is almost always the same as you can purchase for a LOT more money from the named suppliers like Mouser...
  14. kellys_eye

    Napco MA1008e Ver 2 - Battery Over current protection

    Reverse polarity? If you did you had better 'fess up now or we could be chasing a fault needlessly.
  15. kellys_eye

    New project need assistance

    You can't (shouldn't) do it with just the stepper motor as there is always the possibility of missed steps or something else interrupting the movement. You should use some form of switches to detect the start and end stop positions - slotted opto's maybe - and count the total revolutions...
  16. kellys_eye

    Newb Issues.. And Questions.

    20 watts per meter is 20 watts and you can do nothing about that in terms of heat. Tape it to a surface that can re-radiate the heat if you find it to be excessive. The power supply is 'massive' because it contains batteries and the longer you want the LED strip to operate the larger the...
  17. kellys_eye

    How to reduce IR sensitivity for can trash

    So we've gone from simple, reliable, easy-tech foot pedals to IR controlled, battery operated 'garbage'? Progress? Seems like a move 'backwards' would be more appropriate. Given there will be some consideration for angle-of-incidence in terms of IR detection it can only be a matter of trial...
  18. kellys_eye

    Typewriter LCD display repair

    Have you tried applying light pressure along the edge of the ribbon that connects directly to the LCD itself (both on the board and at the LCD glass)? If you can 'encourage' more of the characters to appear you might get away with some added pressure using soft rubber strips at the pressure...
  19. kellys_eye

    Tantalum capacitors

    475 is 4.7uF and 10V rating. Unless it's part of a timing-critical circuit just replace it with standard electrolytic.
  20. kellys_eye

    How to test this 24v 13" Worx Mower

    If that motor ever starts running those croc clips/wires will be smoked almost immediately! Assuming a 'throttle' then we're looking at PWM speed control. This is adding another layer of stuff between the battery and the motor and another potential point of failure. Time to take the covers...
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