Best Rated threads in General Electronicsshow all threads
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battery charger
I picked up a AAA NiMh battery charger. The label reads: Output: 1.2 V 800 mA AA/AAA charging: 120 mA Why the two different current specs? Does not compute -
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2 years ago
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IBM Selectric typewriter
I have two cycle wheels for the IBM Selectric typewriter.
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5 years ago
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LED flashlight
I was looking at some LED flashlights, with ratings from 50 to 150 lumens. A p-n junction is a p-n junction, how do they get such varied outputs? I examined the working end, they all look alike, with...
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12 years ago
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car phone
In old movies, you sometimes see something called a 'car phone'. Always in a limousine. How did those work? -- Rich
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12 years ago
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Panasonic LTD TV, Model TR-602
I just found a very grungy Panasonic LTD TV, Model TR-602, sitting on a pile of garbage out in the rain. I decided it looked old enough to have tubes, so I brought it home. The label on it has the...
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16 years ago
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LEDs Series-Parallel OK?
Connecting LEDs in series-parallel like the ASCII schem below is okay? I don't see any reason why it shouldn't work. If a lot of LEDs, like the 7 below, are paralleled, the total current for each...
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20 years ago
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