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  1. Minder

    Wire

    .028" = 21AWG
  2. Minder

    Wire

    Is it tin plated copper by any chance? Use a digital caliper to measure. If copper core, it will be fine to use for PCB, I assume it takes solder?
  3. Minder

    AC Electric Motor Running Fast Without Load But When Load is Applied Runs Slowly

    Agree, With a typical vane radial impeller pump, air or liquid., a blockage will actually result in lower current.
  4. Minder

    Shorted turns tester

    Came to me, it was originally a circuit put out by Dick Smith, Australia, I build the first version and ran great, It hits the transformer with a pulse and sees if it 'rings' and indicates the decay. https://www.flippers.com/fbt-main.html
  5. Minder

    Shorted turns tester

    I recall when I was involved in TV trouble shooting and I came across an article for making a non-invasive tester for horizontal output transformers. It basically 'rang' the winding at the normal frequency and tested the amplitude of the 'ring' and indicated it on a 8 LED indicator IC. The...
  6. Minder

    Induced current in a coil

    Use a analogue input.
  7. Minder

    replacing 24v motor with 48v motor in existing system

    Bit of a job to change the gearing, using a higher torque motor may require a larger supply transformer.
  8. Minder

    replacing 24v motor with 48v motor in existing system

    Just going from 24v to 48v motor will not guarantee more torque, for a DC motor, torque is directly related to current. To get an idea of the present motor size, is to check if the transformer has a Va rating on it.
  9. Minder

    replacing control panel on Treadmill with potentiometer

    The VDD maybe a source for the console, at least this is how the MC2100 boards work that I am familiar with.
  10. Minder

    replacing control panel on Treadmill with potentiometer

    Know nothing about that model, but you could try a PWM signal into the PWM and VDD (Common). I suspect the rest are other signals to the console, the problem maybe the frequency of the PWM required.
  11. Minder

    Wiring a block transformer

    You don't join the two zero pins but 0 and the other 12v. IOW, 0-12-0-12
  12. Minder

    Wiring a block transformer

    Then you will need to series up the secondaries, 0 12v --ov 12v And make the 12v--0v the CT
  13. Minder

    Wiring a block transformer

    Appears to have dual secondary windings, they would be paralleled if just needing one 12v source. They should be indicated as to the connecting polarity, normally by a Dot on the DWG or marked as 0 & 12 on the transformer. Ensure the 0's go together and the 12's go together. If not sure, there...
  14. Minder

    Treadmill horizon 831T motor control board

    What is the model No. of the main board?
  15. Minder

    Stepper Drive Optimization

    How come writing in Gcode to a PLC, unless this is part of a CNC machine? What PLC? Writing in Gcode, it would have to be a CNC controlled axis. Something doesn't make sense?
  16. Minder

    Relay help

    Here is one Manuf. sheet on it. Also another manuf also says vent unless corrosive gasses are present in its environment.
  17. Minder

    Some help please to identify a transistor

    That is the one, most likely it.
  18. Minder

    Relay help

    A tip. It pays to remove the vent 'pip' in the middle of the relay, this is often sealed for flux cleaning of the board at manuf. The removal, prevents premature failure due to internal ionization of the relay causing arcing of the contacts.
  19. Minder

    Some help please to identify a transistor

    There is a 2SD835 device. Could be this one.
  20. Minder

    PCB layout software?

    I found Kicad just as powerful as Orcad and a lot cheaper (free!) Not only lots of on line tutorials but support from a very good forum. Ver.6 is due out this summer. Sponsored by Cern!
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