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Sci.Electronics.Basics


Sci.Electronics.Basics is a worldwide Usenet news group that is used to discuss basic electronics questions.

There are 4733 threads in our archives.

You are looking at page 29 of 474.

The threads with the newest articles are listed first.

Ultra-powerful headlamp using LEDs? [11 articles]

John Doe - 2009-11-12 00:45:00
I am looking to make or buy an ultra-powerful head/helmet lamp for nighttime in-line skating. It requires lots of light for safety reasons and because skate wheels are small and tend to trip on ...Ultra-powerful headlamp using LEDs?

Connect 36 volt battery to an ordinary 120V household lightbulb? [8 articles]

John Doe - 2009-11-10 23:26:00
Should a 36 volt lithium-ion battery be connected to an AC lightbulb? Will that produce a dimmer light? Will it use less electricity than a normal 36 volt flashlight bulb? I have some 36 volt co...Connect 36 volt battery to an ordinary 120V household lightbulb?

What is the symbol for a mic? [51 articles]

Eddie - 2009-11-10 20:53:00
I want to write (by hand) if some voice recordings of mine are in mono or stereo. Are there some standard symbols used for a mono mic and a stereo mic? Are there mono/stereo mic symbols us...What is the symbol for a mic?

PG&E Wants Rate Hike for Efficient Energy Users [6 articles]

Michael - 2009-11-09 22:59:00
It's a little early for April Fools jokes... http://www.sfgate.com/cgi-bin/blogs/inthemission/detail?entry_id=51129&tsp=1 -- Darrett Computer Repair Serving the Sacramento area. Free estimate...PG&E Wants Rate Hike for Efficient Energy Users

Connect microphone to powered computer speakers? [3 articles]

John Doe - 2009-11-09 17:00:00
Is there a low noise (not necessarily audiophile quality) OEM amplifier that can be used to power an electret microphone for connecting to powered computer speakers? Are there other solutions fo...Connect microphone to powered computer speakers?

urgent need OSRAM SFH480-2/3

mauri - 2009-11-09 16:59:00
Hy All, i need urgently 10.000pcs of OSRAM SFH480-2/3. Can you help me ? Any links of smart brokers ? thanks in advance maurizio ...urgent need OSRAM SFH480-2/3

welding [8 articles]

telmospts - 2009-11-08 08:53:00
I `m trying to draw a power source. Do I have to weld with electricity tools? Aren`t any specific tools for electronics? ..................... Best regards, telmospts ...welding

Setting Presets on Sony Dream Machine AM/FM Radio? [4 articles]

W. eWatson - 2009-11-07 22:38:00
I've had the radio in Subject for years, and it's always been troublesome trying to set the resets. The power went out recently, so I get to do it again. Usually I recall how to do it. Not this ti...Setting Presets on Sony Dream Machine AM/FM Radio?

zener diode info and ID ? [13 articles]

robb - 2009-11-06 12:10:00
i have a suspect zener diode from a PS . Zener, because the PCB says it is (ZD901) it looks like a small signal diode and it has a 16 and 2 printed on opposite sides. to test/replace --- th...zener diode info and ID ?

How to convert MTS, TS, M2TS video to AVI, WMV, MP4, 3GP, 3G2, MOV, FLV, MKV, SWF, MPG, etc [6 articles]

Angelina00 - 2009-11-06 03:28:00
Question: 1: What is MTS, TS, M2TS Files? 2: How to convert MTS, TS, M2TS video Answer: 1: MTS, TS, M2TS is the raw file of AVCHD video. These formats are high-definition MPEG, AVC, H.264 transpo...How to convert MTS, TS, M2TS video to AVI, WMV, MP4, 3GP, 3G2, MOV,  FLV, MKV, SWF, MPG, etc
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