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    Green Technology

    Don't we know it down under at the moment...... only way out is to get rid of these boofheads before it breaks the country all together.
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    Which DC Brushed Motor Should I use for this project?

    You won't increase the power, that is determined by the output of the motor itself. Why brushed DC motor ........???...( old car or truck starter motor from before 90"s) What you can increase is the torque by using a gearbox. Many washing machine in days gone by used a worm drive for motor input...
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    Synchro motors for wind direction indicator

    If by that you mean synchronous motors, I don't think you'll get anything out of that. Synchronous motors are typically used in AC and spin at near frequency speed , hence synchronous. Things like washing machine timers, clocks etc. They do not have any permanent magnet to generate any type of...
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    Help in clean circuit

    I'd solder it up and shove some heatshrink over the whole deal. Other than that there are quite a few online pcb makers that will make you ( possibly about 50 or more using panelize given the size) for less than $10 delivered. China but if you want to be picky perhaps there are US based ones .
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    Speed control of this circuit

    As far as I am aware, the speed of any servo ...(from standard speed to slower) is using the uC to tell the servo to move to a different predetermined small step position (between 1 and 2ms) a number of times.
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    RC snubber circuit

    Yes, it's due to the sudden 10A current flow and the position of the sine wave as it turns on, nothing abnormal about that.
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    Speed control of this circuit

    If you want speed control of the servo, forget the whole circuit and go with a basic uC like Arduino, you'll need it.
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    RC snubber circuit

    Many timers although rated at 16A are recommended to use a contactor for the HWS. All possibly in conjunction with solar .....turn HWS off at night when the sun don't shine..:):) Also this end, forget the snubber, not needed.
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    Treadmill belt not moving but motor works

    Sounds like a reasonable assumption.
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    Ryobi 18v sprayer diaphragm pump help

    Battery probably knackered too. Ryobi are not what you would call "quality gear". Few tests with a multimeter would eliminate a lot of possibilities. "Looking" at electrical can work at times but not that often.
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    Fridge compressor test....

    Not in my swap.............. Then again, that depends on what you are on about, makes no sense (once again)
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    12v solar battery charger

    @23.5v open circuit, should be ok. Consider the solar panel as a bucket of water and your battery as an empty receptacle, difference in level (voltage) will allow current to run. Have you done a short circuit current test?? I can imagine it won't be much. You will need some type of blocking...
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    Building an 18650 power pack!

    Don't forget individual cell protection ....that is some serious fault current there.
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    Help to find a matching female connector

    Look for 2x5p JST connector. You will need to search for the right pitch. You may get lucky with lead attached otherwise simply fit your own, not rocket science.
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    2 latching relays, 2 pushbuttons, 2 dc 5 Volt motors and 4 limit switches

    Like this....
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    Linear power supply for 100W LED...2 questions.

    At those prices, one could buy a complete light fitting with all the necessary drivers included.
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    PS4 Controller Main Board Repair

    Photo in post #12 I can see a bridge short between the centre and right terminal (top) around about the 4 o'clock position. It's tiny but that's is all it needs to be shorted.
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    Tweaking an analog VU panel meter ?

    A lot of good work done at the site below, worth a read at least. https://www.thebackshed.com/windmill/articles/ExpandedScaleVoltMeter.asp
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    Green Technology

    mmmmm...moonshine..??
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    PS4 Controller Main Board Repair

    Buy some flux paste and some good quality solder wick. Plaster the flux on like there's no tomorrow and remove excess solder with solder wick and a good iron. BTW...good luck with anything to do wih a PS board....... never ever made to be worked on.
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