DSL phone line [12 articles]
Stumpy - 21:59 05-05-08
We just switched over to DSL from modem on home computers. Put DSL filters
on the handsets in the house and also on the cord going to the computer
modems. When we try to rece... Read More
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Need advice [11 articles]
dan - 14:02 05-05-08
Hi,
I am interested in pre solid state electronics and would like to learn to
design circuits and build my own guitar amplifiers. Every book I've seen so
far deals with all ... Read More
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Help!!!! [7 articles]
08:59 05-05-08
I want to built a garage for an electric vehicle with a photovoltaic
roof and/or a wind generator that will trickle charge the battery. I
need a simple, economical DC system wit... Read More
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Phone wiring question [19 articles]
Steven Reynolds - 01:12 05-05-08
I purchased a new home three years ago and I wanted to add an additional
phone jack. In my closet, there's the home "Media Center" behind a panel.
I see that there is a mainbo... Read More
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transistor base input [21 articles]
lerameur - 21:52 04-05-08
Hi all
I have an old analog alarm system. I am hooking up the bell output to
a microcontroller.
Although the output voltage for the bell fluctuates around 6 to 9
volts. I nee... Read More
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12v DC power supply read 18v [4 articles]
Ed - 19:53 04-05-08
I bought a cheap 12v DC "wall wart" to operate a simple LED garage
door open alert. The circuit
has only a microswitch, a 1K ohm resistor, and 12v flashing LED.
However, the p... Read More
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Magnetic Earphones - Series Or Parallel? [2 articles]
Dave.H - 11:17 03-05-08
I am thinking of building a set of earphones for my regen radio, as an
alternative to my extremely uncomfortable antique magnetic earphones.
I found some cheap earphones at Antiq... Read More
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ultrasonic mister [5 articles]
10:09 03-05-08
I am wondering if it is possible to operate a 24vdc mister on 12vdc?
Something simalar to this:
Item: MDC01; DC powered mist maker
Transformer Input: AC110V; Output: DC24V
... Read More
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jessica
anitha - 11:36 02-05-08
Check out our new site! Sexy Hair is cool, hip and edgy with
distinguished brand names including Big Sexy Hair, Short Sexy,
Straight Sexy Hair, Healthy Sexy ...
^^^^^^^^^^^^... Read More
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Garage door alert [19 articles]
Ed - 11:08 02-05-08
I'm in need of a garage door alert so there is a small red light in
the house indicating it's open.
I bought one made by LiftMaster, but it's not quite right for my
situation.... Read More
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12 Volt Regulated Supply [9 articles]
Dave.H - 05:54 02-05-08
I was looking at a 12 volt regulated power supply at Dick Smith
Electronics cat. number M9935 @ www.dse.com.au for a regen radio I'm
planning on building (http://www.schmarder.co... Read More
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AC signal across 12V (DC) halogen bulbs? [2 articles]
allanlewis - 19:48 01-05-08
Hi,
I have a lighting controller circuit using an H-bridge, which produces
a 250Hz signal across a pair of 12V halogen bulbs. (The duty cycle is
controller by a microcontrolle... Read More
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