OpAmp and reference recomendations [3 articles]
Hammy - 07:16 07-05-08
I got tired of looking for a FET LDO that meets my line and load
specs, so I'm building my own. The LP38691 is the closest I could find
thats in stock and doesnt cost a lot,and... Read More
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Healthy Living
john - 03:37 07-05-08
Lower blood pressure - cholesterol - fats - blood sugar , improve
respiratory responce , treat cancer.
www . ceosec . com
... Read More
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terminator use [14 articles]
20:48 06-05-08
I'm confused about the use of terminators. I'm sending pulse signals
from some 93 ohm output equipment through 93 ohm coax to my scope
which is 50 ohm. I have a t at the scope. S... Read More
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cc at powersupply [5 articles]
sp - 18:38 06-05-08
we r doing one project based on uc.we want 2 supply voltages one is
5v,and another is 3.3v.we r using adjustable voltage regulator to
adjust the o/p voltage.i will consume 50mA,... Read More
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Help needed to construct wireless headphones [5 articles]
Gaurav - 04:19 06-05-08
Hi everybody,
It has been a long time since my college and I wish to brush up my
learning that I once did. I am in need of a wireless headphone and
would love to construct one o... Read More
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pulsing leds [8 articles]
22:00 05-05-08
Is there a upper limit as to how fast you can pulse an led say a
ordinary red led 2v v forward,20mA current. I'm try to drive it with a
signal generator,and pick up the flashes w... Read More
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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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