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  1. B

    Is it possible to use a stepper motor without a micro-processor ?

    Currently away from my files/computer (Beer Leo$2.00 a tallie....land of smiles) but this one might get you started..... epanorama.net ...... How to use disk drive stepper motors....
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    200vdc 1A supply, adjustable 180-220vdc

    Why not a standard 400va dimmer on the input to the transformer?
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    Is it possible to use a stepper motor without a micro-processor ?

    I used to recycle the boards out of an old floppy drive as they provided what is required. Then just add the step and direction signals. Bit hard to come by these days but surely a chip with the same properties exists.
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    Grounding Equipment in a Lamp post

    I'd say get an electrician as it is clear you have little understanding of mains distribution systems.
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    How to delay the relay

    You don't need to delay anything. I'd say offhand you have a wiring error. Best to draw up exactly what you have and we can comment more accurately from there.
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    How to delay the relay

    Both links go to the same place....cannot see any wiring diagram
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    Inductive load control

    Many fan makers have done away with thyristor control years ago mainly because of the noise component. All simply use a 3 position switch these days. First position connects directly to the supply and the remaining positions switch one of two capacitors in series for lower speed. Values are...
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    12V switch in series with two 12V DC motors & 24V power supply. Is this ok?

    Don't think much of your series motors idea, too many possible problems. Voltage does not run through the switch. When the switch is off, 24v appears across it and when it is on, zero volts across it.
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    Output of the alternator

    Inductive
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    Help with powering immersion heater!!!

    Agreed. Also what concerns me is it is yet to be stuffed into a bucket of water.....⚡️⚡️
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    RC charging and discharging

    Battery is backwards if you say that chassis is negative, otherwise ok if cap is non-polarised. Resistors from what I see form a voltage divider.
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    How is this Possible

    Maybe the strange looking diodes and cap is a voltage doubler but crystal ball is cloudy today
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    One on-off switch for 2 circuits ?!

    Neon lamp and resistor. One can get them from ebay already set up enclosed in their own casing. http://www.ebay.co.uk/itm/9mm-240v-Mains-Red-Neon-Indicator-With-200mm-Leads-/301337737695
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    TORQUE DETERMINATION

    Ceiling fan motors are capacitor start/run not shaded pole. Very low torque.
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    Circuit help

    Need to know more about the LED. The rest is simple.
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    Is this actuator really 12VDC? Could it be 24V?

    Double posting does not speed up any reply.
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    Longer wire = weaker motor performance???

    Show the complete setup (photos , drawings)
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    Delay off circuit

    If you can say exactly what you require it would be a big help. For example " I need the circuit to put my switch to earth for 5 seconds then off again." means you need a standard 555 with a trigger. However this, "These will switch after 5 seconds but will not return to original state after...
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    Soldering Recommendations

    I agree with chopnhack. Those guns you refer to are just plain rubbish. Used one once as a matter of "have-to" and I can tell you with a 1 metre lead you can hurl them more than 50 metres. You need something with a decent head to hold heat. By the look of the boards you are soldering to, they...
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    Delay off circuit

    You can get the whole thing already built for a couple of bucks off ebay. http://www.ebay.com.au/itm/NE555-delay-module-monostable-switch-delay-switch-delay-automobile-Project-/281958290206?hash=item41a606131e:g:hsEAAOSwr81UOJtr
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