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    Wanted: Basic Electronics Workbench Equipment

    Seems unbelievable you have managed to get to " engineering" level without as much as a multimeter or soldering iron. Other things you mention one tends to accumulate over the years as the need arises. Plenty of good new stuff on Ebay and the like these days at fraction of what we had to pay way...
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    Modify chinese high power LED to emit less light/heat?

    Might be very similar to this as in pdf. Number looks like MX2082S Doubt running a 220v unit on 110 will work.
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    40 Floppy disks for...

    I ripped the motor and driver out of a 5.25 FDD and used it to drive the feed screw on my model engine cam grinder I built about 25 years ago, then re-built after the 2013 flood. That's about the only memory it has left.:):):)
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    Questions about chargers & charging a 2kWh section of a Chevrolet Volt battery

    Easy for some , not for others,depends on experience. Bit like asking how long is a piece of string. Too many variables on way to broad application.
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    Noob seeking circuit advice - if 0v then 2.5v otherwise 0-5v

    Many transmitters have a fail safe option where the receiver will go to a pre-set setting ( almost anything you want) once signal is lost. As an example in modern gear is the return-to-home feature. Might get you started on the right track with that in mind. I'll include a link to a video where...
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    Crystal sets - How do they work? :) (with real diodes)

    Think maybe they snuck in an u/g feeder when you were having your nanny nap.
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    Questions about chargers & charging a 2kWh section of a Chevrolet Volt battery

    Bms units are essential, not an expensive add on as you seem to suggest. They are not a simple matter and things can and do go wrong even when attemps are made by experienced people. You may remember the problems encountered by a particular airline using lithium ion cells or the problems that...
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    Crystal sets - How do they work? :) (with real diodes)

    Voltage is not a problem. Antenna extracts whatever power it can via the antenna, perhaps only nanowatts.
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    Solar Tracker

    This is the current practice for solar power in Aus, mine included. To make my system a bit off is also the fact that I have two systems ( also common practice) feeding the inverter, panel face east and west,simply as that was the easiest most efficient way of installing them on the shed roof...
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    23HY56-25-4A stepper

    Get a half decent driver that can handle the current. Something along the lines of a A4988 would be a good starting point.
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    Single to three phase... sort of...

    Variable frequency is speed control.
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    Electric Motor Conversion European - USA

    I was about to say the same for Aus.
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    Solar Tracker

    Well you might find someone here willing to design a system for you from go to wo but I wouldn't hold my breath. Besides, how deep are your pockets?
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    Solar Tracker

    So change the interface. The program, drive arrangement, sensors etc. would be identical.
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    Questions about chargers & charging a 2kWh section of a Chevrolet Volt battery

    With lithium battery management one must observe and control the individual cells, not the pack as an assembly. As with all batteries there are good points and bad points and all versions of lithium are no exception. The particular one you have chosen is not the be-all end-all of lithium but...
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    Solar Tracker

    Not as simple as one would first imagine. However there are many attempts with differing amounts of success all over the internet. Control via microcontroller is almost a basic requirement these days so unless you are familiar with these arrangements, you will have a lot of work in front of you...
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    Electric Motor Conversion European - USA

    You will be lucky if you have not damaged the motor running on low voltage. The clicking sound would have been the centrifugal switch which is designed to operate at the correct speed and turn off the start winding. As it stands like I said you' ve more than likely burnt the start winding and...
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    4 Pin Mini DIN Right Angled Plug - where to buy?

    Can you post the photo here? Link brings up all sorts of complaints and no photo.
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    Faulty usb-port

    Looks like the 4 larger pads might be the anchoring solder points for the usb socket outer frame.
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    Newly coiled motor burnt out

    Forward or reverse 3 phase should make absolutely no difference as it is simply a reversal of phase sequence. A bearing collapse certainly can do a lot of damage in a short period but something about this whole scenario just does not sit right. Something that started as a simple rewind of a...
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