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  1. Martaine2005

    Radiogram, no sound

    Hi rematzz, Check out "Mr Carlson's Lab" on youtube. He goes into great detail about fault finding and repairs with valve equipment. Also up to date electronics repair too. Very knowledgeable guy and easy to understand. Martin
  2. Martaine2005

    LED Strips blink on all X10 circuits

    Hi Blayson, The X10 modules you have are probably pre-CFL modules. These did cause problems with driving leds. You might want to upgrade to CFL compatible modules. Not 100% sure though. Are your light modules ceiling mounted? Or adaptor and wireless switch?. Martin
  3. Martaine2005

    LDR, Transistor, and Electromagnet

    Martin
  4. Martaine2005

    Help $ home work.

    So you can use ohms law to get your answer. You have the voltage and the resistor value. So, V / I = R And V / R = I. Which one would you use to get the current? The more current limiting resistance, the duller the led (bulb) will be. The opposite is also true. Martin
  5. Martaine2005

    Mig welder help

  6. Martaine2005

    Mig welder help

    Hi Laurence, Is it the supermig? There is a pcb on the inside back at the top. Try and check the rectifiers there. I suspect that is the problem. Can you confirm voltage to that board and nothing after? Martin
  7. Martaine2005

    Vibration excercise machine repair

    Hi Lim, Are there any other components between the board and motor? Martin
  8. Martaine2005

    Back to basics wiring question...how to hack headphones into TV..

    Hello, Does your TV have RCA audio out? If yes, you can get an RCA to female jack adapter. Obviously the jack size will depend on the jack you have now. Martin
  9. Martaine2005

    Help $ home work.

    Have you been taught Ohms Law yet? V=IR. Voltage = I (current) x (times) R (resistance). And your 'bulb' is a LED, Light Emitting Diode. Martin
  10. Martaine2005

    Drill bits for homemade PCBs?

    Just a little... But it's far more satisfactory making holes with a bang!! Martin
  11. Martaine2005

    PWM Circuit project help

    Hi Alexander, Remove the red section and it should. As Harold explained. Martin
  12. Martaine2005

    Trouble with solder

    Hi 8bit, I have been watching this thread. It does sound like you are burning the flux.. Any chance you can upload a video to Youtube. Only then can anybody be sure of what is going on!. At least then we can see your iron, flux and how you are using it.. The iron is either too hot or too cold...
  13. Martaine2005

    Dirt Devil Jag3 Vacuum Repair

    Lol, Sorry, My mind was clearly elsewhere! Canada looks nothing like Switzerland.. I think the main board has some rectification going on. I do believe that you can still connect the motor directly across the points where the pot was. That will give you full power.. Martin
  14. Martaine2005

    footstep power generator

    Except if you are 'Mo Farah', who is advertised as British.........He is Somalian.....NOT BRITISH.... OR ENGLISH....Damn
  15. Martaine2005

    Dirt Devil Jag3 Vacuum Repair

    Hi A8ton, I would like to say that you can simply wire the motor direct. And avoid the pot. However, isn't Swiss Voltage 240v? Martin
  16. Martaine2005

    Designing VFD starter in EATON MCC

    Can you elaborate a little please?
  17. Martaine2005

    DIY led driver help

    In the video at 3:36, he explains it in great detail. Martin
  18. Martaine2005

    How to convert frequency to light

    Something like this on Youtube. Martin
  19. Martaine2005

    How to convert frequency to light

    That's a very BIG ask!! You need to find out what frequency you will be monitoring. Possibly something like a RF Detector, Bug Sweeping, Wireless CCTV detection etc. Martin
  20. Martaine2005

    PWM Circuit project help

    Hi Alexander, Is the collector and emitter connected together in your picture? Wouldn't the leds be on constant bypassing the transistor? But 'like a tap' is not very helpful!! The output of the 555 is set to come on and off at a set frequency by a capacitor and resistor on the input side. The...
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