Search results

  1. B

    DECT baby monitor

    Do you have a circuit diagram.....?? If not, follow back the tracks from the speaker and draw out what you see. Find the output amp and see what markings are on it. Google the number to get a spec sheet. Do some testing based on that. Or chuck it in the bin and get a new one. Chances are the...
  2. B

    3D printer heat bed burned connector

    Doesn't look all that bad....I'm guessing there is another contact pad underneath that you didn't show .
  3. B

    Replacing electrolytic cap with non-polarized a mistake with tube radio?

    Your full circuit is too small to make out anything. Photo in #4 is a paper cap not electrolytic and reference to C5 in #6 is normal paper cap too I suspect as that is what the symbol shows. There are many symbols used for electrolytics on the web so I suggest you familiarise yourself with them.
  4. B

    Solar to single cell LFP?

    Show everthing you have including schematic. These converters are normally self starting so you have something a-up somewhere or a dodgy converter.
  5. B

    DECT baby monitor

    Like I said......receiver amp area.
  6. B

    DECT baby monitor

    Call me crazy but I would have started at the receiver amp area.
  7. B

    Panasonic Sa-ak270 Amp(Why I am getting a Dc voltage on the output?)

    No idea....probably in a part of the circuitry you haven't shown. Far too complex for a beginner anyhow and "shorting" more than likely caused more problems. That plus it's Xmas and I'm taking time off.....
  8. B

    Sensing 0-10 RPM of a shaft continuously

    Ok as long as the sensor (if IR) is shielded from any outside light.
  9. B

    Panasonic Sa-ak270 Amp(Why I am getting a Dc voltage on the output?)

    Shorting things out willy nilly is a big no-no. It is not how to test and can cause disasterous results.
  10. B

    Sensing 0-10 RPM of a shaft continuously

    Or simply use one magnet and a hall effect as noted above on opposite sides of a metal disc with a series of holes around the perimeter or cut outs .
  11. B

    Sensing 0-10 RPM of a shaft continuously

    Look for Arduino pulsein. I'd tend to use a digital hall effect. One I commonly use is a module from Ebay KY-003 that uses an Alegro 3144
  12. B

    Need help of my project

    Neither will anyone here. Post your code (using code copy for forum) and schematic , photos of how you wired everything including power supplies.
  13. B

    Help with rectifier identification

    Not necessarily...
  14. B

    Ok what is it?

    Only two cables...? the black one just melted into the outer casing...?
  15. B

    Help with rectifier identification

    Yes, not quite sure what the setup is there. Many will use the centrifugal arrangement wholly as the speed regulator BUT they usually have a resistor and capacitor in parallel for rf suppression. And they usually do not have any other speed control device such as a triac. The cam would act on...
  16. B

    45005 Battery Charger Circuit Board Replacement

    Resize your photos to smaller size.
  17. B

    Help with rectifier identification

    Show photos of the centrifugal switch . Usual approach is more photos the better. We cannot see what you can see there.
  18. B

    Place to purchase sankyo cassette motors

    Ebay...........:eek:
  19. B

    Help with rectifier identification

    It's not a rectifier as such, more likely a thyristor. It's possible just about any would do as a replacement. Have you tested the device and what mains voltage does it run on? Are there any capacitors across the speed control unit as these often fail and cause full speed?
  20. B

    Electric motor cooling

    Rubbish...motors heat up whatever. Try getting out and use a fraction of a HP trying to push crap uphill and see if you don't get a sweat-up.
View older results
Top