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    capacitor testing for novice please

    There is no capacitor test range on that meter. Could be wrong but I'd say offhand, testing the paper one would not be necessary.. It's so old it a wonder it's not unravelling. Edit:- focusing in on your photo (rather difficult) I'd say that goes for all of them.
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    Switching between two batteries.

    You need to look at how chargers work as well as ypur ideas about requirements are not correct.
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    Newbie; 3 phase, 460V, 12 wire motor; what if wrong hook up?

    Very lucky it didn't end badly. Reason why we were always taught L1,L2,L3, A1,B1,C1, C2,A2,B2.(or ABC, CAB)
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    Reverse bench grinder

    Reverse either the start or the run windings in relation to eachother via a dedicated changeover switch. For example, motor winding ends are referred to as "start" and "finish". If a motor such as this one is running one direction and it has both "starts" joined together and both "finish"...
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    Subaru Forester remote

    Would it be correct to say the vehicle would be of European origin? Just that there seems to be variations all over the world depending on where the vehicle was manufactured. EDIT:- found this video as example on re-programming....vehicle specific. Note that it says OEM gear. Also on his...
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    Subaru Forester remote

    Many instances these remotes can be had for a few dollars on Ebay. Trick is to get the correct programming code into the unit. If you give us details on your model type of your vehicle perhaps we can help you search that way. Edit:- Quick search on Ebay came up with this Aussie mob........they...
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    Measure distance to water surface

    Apparently the 2M range is a bit exaggerated. Good pickup though, always on the lookout for modules like this just to keep up-to-date.
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    Measure distance to water surface

    Arduino would be well within capability. Many different sensor arrangements such as sonic, slotted IR via codewheel, rotary encoder, but water resistant or waterproof throw up 2 different requirements initially and a host of mechanical possibilities. Then you have velocity and acceleration to...
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    Proximity sensor and SS relay

    Circuit, photos,model number, symptoms (aside from what you believe the problem to be)...?
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    Simple power supply that can be embedded in a wall socket

    Clipsal make a "saturn" range with an LED encased. Choice can be one of 4 different configurations including the 2 wire A/sw wire arrangement Bob mentions. Expensive little mothers though. Neon/resistor for 10c would work just as well on most lighting also as Bob quoted.
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    P Channel Mosfet Resistor Protection Issues

    Attached is a typical P mosfet arrangement.
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    P Channel Mosfet Resistor Protection Issues

    Doesn't go anywhere. There needs to be a potential difference for current to flow. What it does is hold the gate at source level to stop the gate floating and turning on with noise etc.
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    P Channel Mosfet Resistor Protection Issues

    The resistor is there to stop the gate floating. I'd suggest something wrong with the gate signal. e.g.that electrolytic cap looks to be in a bad way.
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    I need help with DC power barrel jack repair

    Photos of the board before you destroyed it would have helped. Suggest local tech might have luck tracing what went where.
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    P Channel Mosfet Resistor Protection Issues

    Google wants membership ......P Mosfet with positive rail voltage on the gate is off which is correct. Remove the voltage and let it float could tend to let the mosfet come on which also appears correct. Suggest you have other issues. Do you have any details of the machine, circuit layout...
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    Automatic watering

    Seen these...?? $4.00 battery every 4 months or so. As a side note, received 139 results from a Google search for "Arduino solar watering systems".
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    Power cuts and my solar power?

    Mmmmm.... Well my 22 panels generate between 31kwh in summer and 15 in winter and usage ( which is considered below average down under) is 12 to 14 units a day. Excess is returned to the grid and we receive credit. Even though credit rate is only half of night time charge rate, the savings each...
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    Power cuts and my solar power?

    Maybe one of the ones with the dodgy chips....:):)
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    Power cuts and my solar power?

    Diesel fuel will stagnate if left in storage without recirculation. Even then, limited.
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    round slotted nut tool ?

    https://www.ebay.com.au/itm/Bicycle-9-10mm-Chainring-Nut-Bolt-Tool-Peg-Spanner-Wrench-For-Shimano-TL-FC2/112291162188?epid=1282890080&hash=item1a2513284c:g:TuIAAOSwrQxbF~es:rk:7:pf:0
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