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  1. Minder

    Site originated Spam.

    How come i am receiving Spam with link referenced to a previous thread subject I answered to? How did they obtain my email address?
  2. Minder

    Eliminate 60 Hz hum on contactor with 120V coil

    Have you checked this source of 120v for actual voltage? An AC contactor coil does not tolerate much in the way of reduced voltage.
  3. Minder

    Eliminate 60 Hz hum on contactor with 120V coil

    One reason I always use DC contactor coils, also DC is much more efficient, i.e. less heat.
  4. Minder

    What is this Circuit Breaker used for?

    Many such panels were custom made for OEM's for use in various industrial machine control systems and other such applications
  5. Minder

    Replacement relays?

    Generally relays come marked with their respective part No. and a WEB search usually brings up Manuf specs. As a last resort, a little reverse-engineering of the board shows the pin out, there is usually a diode on the board across the coil terminals.
  6. Minder

    SSR Power Control

    What is the exact nature of the load? A small (8pin) microchip should be able to do it.
  7. Minder

    my french 1 h/p single phase motor only runs if I pull the belt bit stops under load.

    You require a replacement start or start-run capacitor.
  8. Minder

    Very thin wire in an ac motor?

    Also must be a Universal motor (AC/DC) if the fields are in series with the armature as it sounds. The rpm on these are controlled principally by the load
  9. Minder

    thyristor vs triac

    Thought we had put this one to bed 5 years ago? :p
  10. Minder

    Problems with PCB layout

    Depends on the S/W being used, I use and am familiar with the free Kicad and you can add components as you wish. For the physical layout, you would also need to provide a footprint.
  11. Minder

    Controlling/limiting a 6v DC motor with polarity module

    It is simple to use two N/C. L.S. in the two motor conductors, A diode rectifier is wired across each, connected so they only conduct if the switch is open and the correct polarity is supplied to reverse. I can post a pic if needed. One show the L.S. Diode method.
  12. Minder

    Problems with PCB layout

    What is the actual question here??
  13. Minder

    A question about monitoring mains power consumption

    Bit of a misleading title, "monitoring Mains Power consumption" when really asked is the presence or absence of current. Mains Power would be Wattage metering.
  14. Minder

    DC Motor Driver Problem

    What rating/value is the fuse? You could try a fast-blow type if it does not cause nuisance blowing. Or just drop the value.
  15. Minder

    Motor configuration help

    Two possibilities, one is a DC motor with wound field, the second, a ECM electronically commutated motor.
  16. Minder

    DC Motor Driver Problem

    That appears to be one of those $2 - $3 version off ebay, usually a 555 PWM, You would need to do a little reverse-engineering of the circuit, i.e. draw it out on paper and go from there.
  17. Minder

    Seeking Front Panel Silkscreen Alternatives

    I have always used a local engraver that uses reverse engraved Lamacoid, pick out a main front colour, then colour for all the reversed engraved images. Smooth front and can be wiped clean anytime.
  18. Minder

    Am i testing it right

    Also very strange the neutral is being switched rather than the Live.?
  19. Minder

    Does the capacitor turn the polarity of the voltage

    If you use the chassis GND for reference, voltages will negative with respect to it. If you want to use the conventional mode, then use the -ve side of the bridge as the reference.
  20. Minder

    Does the capacitor turn the polarity of the voltage

    The output of the bridge is correct for C2? Nothing is being reversed, the power supply +ve is referenced to chassis GND. The zener is 3.8v to 4.2v
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