Latest threads in Electronics Down Undershow only best voted threads

Subject Author Posted Replies
 
Hemispheres.
Give us our bloody summer back!!!
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5
 
Old Austraian Electronics Magazines for Download
I've known about the website for some time, but I just noticed that they've significantly expanded their collection of Australian magazines available for download: They're pretty complete from the...
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6
 
Circuit wanted - Antaron 1380D-TC4 PSU
Have a couple of these here that were all the go with AWA supplying them late last century for use with their two-way radio gear. Metal case, brown top, regulated 13.8V unit. Would appreciate it if...
 
Gotta protect the integrity of that power
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3
 
OT: Running a pedestal fan in reverse - failed - a rant of sorts.
For reasons I need not go into, I wanted to make a cheap pedestal fan blow backwards, by putting the fan on backwards, and running the motor in reverse. The motor is a typical PSC motor, and reversing...
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36
 
Strange phenomena in fridge.
If I leave an open drink on the top shelf of my fridge (non freezer section)without changing temp settings, on hot days the drink freezes. I can only think that the thermostat must be sensing part...
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5
 
Random fact about battery storage
If the entire electricity supply for Australia were based on solar panels and lithium ion batteries, constructing those batteries would take more than the entire world output of lithium for a year....
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28
 
Re: China using ELECTRIC ship to haul COAL
Doesn't seem all that surprising to me given the very specific application. The ship makes short trips between power plants, which themselves generate power much more efficiently than what would be...
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2
 
IC Pin-width Pin Headers
I often find myself making and buying boards to fit into IC soctets. Usually these use pin headers, but the standard pin width is too thick to fit into machined pin IC sockets, tends to damage the...
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11
 
Cascading binary counter ICs
Hello, Expertise in 4000 series logic family is needed here. I have a timer application where I need to count to eight hours and twenty four hours and then reset and start again. I'm using an Epson...
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17
 
Tinned copper wire
I'm having a great deal of trouble obtaining bare tinned single strand copper wire in 30AWG or around 0.2mm diameter. I need it for perf board prototyping. 30AWG wire wrap wire works but it wastes...
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3
 
How come?
How come the 18650 batteries in my torch last a short time(relatively) and ev 18650 batteries last over ten years? Apparently there are different flavours of 18650 so why can not I get car type 18650s...
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4
 
How to organise a solarfeed-in boycott
Given that investment in renewables has managed to destablise the grid (which may yet suffer a death spiral), I'm considering installing solar panels and battery, to protect myself from blackouts....
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16
 
AGL electric cars $1.00 per day
What would they do with a thousand Teslas in one city?
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4
 
Low Cost Course in Electronics
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