Latest threads in Electronics Down Undershow only best voted threads

Subject Author Posted Replies
 
Digital TV Antennae upgrade
Hi All, I'm in a difficult reception area here at Salisbury Heights in Adelaide. I have a ridgeline which shields me from the Mount Lofty TV transmitter antennas, and a 33KV trunk mains running across...
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Old ETI453 amp info
I'm looking for the circuit and ETI article for the mini-amp ETI453 from ETI April 1980 (also published (I think) as the HE105.) I've got a couple of PCBs but have long ago thrown out the ETI mag. It...
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Reverse socketing CMOS
Just inadvertently reverse socketed a 4001 quad nor on a prototype. It got stinking hot, after I turned the power off I decided to just swap it round and try for luck. It works OK, just wondering how...
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Replacing NiCd batteries in an obsolete Uniden UH-052XR radio?
This is the one, it's 10 years old it works OK and is built like a tank which is why I would like to replace the long expired detachable NiCad battery pack which is no longer available as a spare part...
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Free schematic capture.
 
Cheap Linux SBC PC
A bunch of Poms have developed a cheap SBC based on the ARM1176JZF-S CPU which is used in cell phones. It runs Linux and should be out 1st quarter 2012, expected cost US$25-25 depending on model. Some...
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Dick Smith Exposed
hy t y A lot more of this in Whirlpool forums I noticed too. Im not really surprised at this, and I don't think it would be limited to Dick Smith either. As for your case with valves and transistors,...
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Budget Soldering Station
** Hi, got one of these from WES : Costs only $20. Described by them as " 48W Variable Temperature Controlled". Fraid it is not temperature controlled. The iron is 48 watts all right, but it is also...
 
infra red
I have a universal remote. When the batteries get low, one of my devices still responds to the remote, but another device doesn't. What would be the cause of this? I assume there is the same amount of...
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transistor
I was told by an auto-electrician that a transistor in my car immboliser has died. Is it possible for transistors to die? Why do they die?
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Air wick
Air wick now has an inbuilt sensor that detects odour molecules (they recon)that triggers the any one believe them? Stick it in a sterile room and I bet it will go off. Bet it mainly works off a...
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electric jug standby power
Was talking to a colleague today, and they had just purchased a new "cheapie" electric jug from a discount store to use at work in their staff room. When they went to use it found that it had these...
 
240V in a moving behicle? Really a safety issue?
Background; A common question amongst various types of people is about using mobile fridges/freezers and rechargers off 240V whilst driving their car. The basis isthat most fridge/freezers run better...
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DAB+ radios, who's buying these things?
Since I last looked at the market a year a go things don't seem of changed much at all. Prices are still about 8 times those of a conventional FM/AM radio and if you believe the reviews on the Dick...
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Safety Recall
** Hi, came across this warning on the Yamaha Music web site recently: " Hazard Due to the defect products can cause death or injury to the user " Sounds pretty serious. But how can an AC plug be...
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