Search results

Search Forums New Posts
  1. (*steve*)

    Wiring on Pedal Assist Bike

    If B and C are joined together at this end... I'd like to think they're joined together at the other end too. I would test the resistance across all pairs of disconnected wires. If any 2 have a very low resistance then these are likely to be B and C. That then makes the last wire obvious...
  2. (*steve*)

    Wiring on Pedal Assist Bike

    Well... It's will be an easy fix. Just solder the wires back where they came from. The major problem is finding out which wires go where. I would start by looking very carefully at each joint, looking for a small bit of insulation, or some evidence about which wire connected there (maybe...
  3. (*steve*)

    WiFi Antenna Composition

    You'll probably find a piece of coax with the braid pulled back over the outer insulation.
  4. (*steve*)

    Normal resistors for High Voltage application

    One interesting thing which also happens if that the effective resistance of a resistor may drop at voltages above it's maximum rated voltage. Voltage ratings are often related to the power rating of the resistor. This is due to several factors, two of them being physical size and the length...
  5. (*steve*)

    Resistor Question

    Actually, for very low resistances it's best to use the correct instrument. That instrument is not your typical multimeter (unless it has a 4 wire ohms measurement mode). Whether it's digital or analog means far less. Adjustments to zero the meter were far more common in analog meters...
  6. (*steve*)

    Small solar power constant charge to charge a big capacitor.

    Once you've been able to afford the cost of capacitors to replace the storage capacity of a rechargeable battery, what will you need to do to your load to handle the input voltage changes which will be much greater than if you had used batteries. Sure, you could have a DC to DC converter on the...
  7. (*steve*)

    GCSE Course Work Project - Robot Vacuum Cleaner

    There are generally two ways for a robot to vacuum a room. One is to form a map of the room and to use this to navigate and ensure it is all traversed. The other way is to move about semi randomly, cleaning patches as it goes. One is easier than the other.
  8. (*steve*)

    Small solar power constant charge to charge a big capacitor.

    That is the state in which the capacitor is typically called "charged".
  9. (*steve*)

    DVR power supply testing

    Ignore that resistor for a moment. You mention it connects to a transistor at one end. I suspect the other end connects to an IC. Get a good picture of both. They need to be good enough that we can read the markings and preferably see all the dust and dirt on the device. We'll be looking...
  10. (*steve*)

    Unknown components

    I can't identify the species of plant. You have it well focused, but we're not specialists in that sort of thing. The fuzzy, out of focus board with the resonator and the electrolytic capacitor sitting on top of some other undefined object is mostly masking out the plant anyway.
  11. (*steve*)

    analyse this circuits please

    No, do your own homework.
  12. (*steve*)

    Replacing switch with transistor

    Firstly, that transistor probably won't handle 1A. Secondly, see the resources section of this site for a resource describing how to switch a load with a transistor. I don't the right house button on a mouse will need to switch 1A! You may be better off using an optocoupler because then you...
  13. (*steve*)

    Testing Procedure For this Component

    No. Pin 2 is either connected to pin 1 (when the transistor is on) or disconnected from it (when the transistor is off). The transistor turns on and off many times per second. In most cases, when the transistor turns off the voltage at pin 2 drops to a diode drop below ground. To understand...
  14. (*steve*)

    Testing Procedure For this Component

    This is the heart of a switch mode regulator. If the power supply is the correct voltage then it's working.
  15. (*steve*)

    DELCO TRANSITOR DS-501

    Unfortunately you are answering a post made 14 years ago on Usenet by a person who probably has never heard of electronics point.
  16. (*steve*)

    Testing Procedure For this Component

    If you look at the datasheet you will find some samples circuits. The best test would be to place the TS2576 in such a circuit and ensure it does what it should.
  17. (*steve*)

    Bajaj induction cooker 2000w - fault finding

    I think it has a fault. How skilled are you with electronics, what test hear do you have, and do you have a schematic?
  18. (*steve*)

    Introduction

    Hi Bikash, welcome to Electronics Point
  19. (*steve*)

    DVR power supply testing

    It might help if you can take a good photo of that.
  20. (*steve*)

    Cable tracer for RG6,RG6Q

    If the cable is shorted then why can't you determine that with a multimeter?
Top