Latest threads in General Electronicsshow only best voted threads
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4-bit Colour DAC R2R values??
Hi, I am building a small computer with a 4-bit 16 colour video output that will go into a monitor that has 1500 ohm impedance. Please could someone tell me what resistor values I need to use to...
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14 years ago
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Electronic Box
Hello When I make my electronic stuff I often have a problem to get a box to put it in : They are expensive an often inapropriate. So I prefer to use a video tape box/cover (I don't now the exact...
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14 years ago
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HF voltage increase
My 2 to 10 gigahertz sig gen has an output of 2.2V,RMS,,,,how can I bring this up to 5 volts NOT rms. Thanks Joe in Texas
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14 years ago
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Cell phone question
Cellular phone questions: Do cellular phones only transmit to the nearest tower, and then at point they go down into the underground (buried) land line infrastructure... and make the entire journey...
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14 years ago
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Multiple DSL connections on one phone line
I have a phone line that enters at one end of a house and has a double plate for the usual 2 phone connections in the room. I want to locate an Internet radio near that plate and to have a DSL...
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14 years ago
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Seemingly elementary question I can't find a useful answer to...
A situation I've never encountered, so I've never thought about... If I've got a 12 volt lead-acid battery, and, for whatever reason, the charging source decides to start feeding between 6 and 15...
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14 years ago
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Gourmet Gifts made easy by Giftswish.com
Gourmet Gifts Baskets [ Url: Gourmet Gift or Food Gifts are increasingly becoming a preferred gift for the holiday season. Food Gifts or Gourmet Gift consisting of gourmet chocolates, imported cookies...
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14 years ago
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Over the air TV to stop?
I have been seeing ads on the TV stating that there's some kind of movement which supposedly threatens to end over-the-air TV broadcasts to the public -- which doesn't make much sense after all the...
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14 years ago
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Teaching Microcomputer Interfaces: List/Compendium of I/O Designs?
Hi Everyone, I'm looking for websites or books with a number of examples of I/O interfaces for use with typical microcomputer digital I/O pins. (Searched for things I saw a few years ago, without...
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14 years ago
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drop AC voltage question
I have 208 VAC coil voltage relay that I want to operate with 240 VAC. Can I drop the voltage down with a capacitor? If so what value? Should the capacitor be rated for 370 VAC? I don't know the...
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14 years ago
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WHat will the hottest trends be at this years Consumer Electronics Show in Las Vegas?
While we're gearing up for the upcoming 2010 Consumer Electronics Show, what should we really expect? Will the current state of the economy hinder major upcoming announcements? Here's some predictions...
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14 years ago
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Solar cells for less than 1 USD per Watt
Do you know that you can find solar cells for less than 1 USD per Watt on ? Regards.
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14 years ago
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Piezo buzzer as a sensor connected to the uC ADC
Hi, I want to connect the piezo buzzer as a sensor to the microcontroller. It fact it should be an input device for a simple electronic drumkit for my son (8 Piezos -> USB MIDI -> Linux PC ->...
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14 years ago
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motor question
Does anyone know how to reverse the rotation of an AC motor?
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14 years ago
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ethernet over mains
I'm in the UK and I have a question about ethernet over mains devices. Are they all universal? or will they only work with a matched device? (ie: same speed, same manufacturer/model). I use a couple...
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14 years ago
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