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water level relay [11 articles]
09:28 30-08-08
I thought this would be easy, but I'm struggling with the details.
I have some lights (12VDC 200W) I want to turn on when the water level
in a fountain reaches a certain point ... Read More
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Dual Trace Sound Card Scope [3 articles]
scott93727g - 18:34 29-08-08
SndScopePro 1.5
Dual Trace Sound Card Scope
Professional Dual Trace Oscilloscope
AC DC Triggered Input
Single / Dual channel
Volts / DB Digital Readout
Time / Frequency Digit... Read More
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Do Sock Puppets Count As Readership? [24 articles]
14:12 29-08-08
If you get a lot of responses under different handles, all with
nothing to say, is it any better than having zero readership of people
with somethig to say?
Bret Cahill
... Read More
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Problem with this circuit [2 articles]
11:02 29-08-08
I've found this circuit:
gnd------voltage source-----current source------resistor----gnd
all sources are ideal
I shoud calculate the voltage across resistor....how can i do?
A)... Read More
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Scope dilema [7 articles]
Greg - 23:42 28-08-08
I am looking to purchase my first oscilloscope use from eBay. I have seen
many recommendations for the Tektronix 465 series of analog scopes. I have
also seen several 100 Mhz... Read More
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Constructing a "delay" into a system? [5 articles]
richg99 - 21:50 28-08-08
OK I can solder, and 50 years ago took an RCA Electronics course so I could
fix b&w TV's. Since then, not too much electronical has happened around me!
I now fly some lightw... Read More
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breadboarding [25 articles]
z - 20:04 28-08-08
oh yeah!
http://blog.makezine.com/archive/2008/08/bread_circuit_board_blink.html
... Read More
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help reading a datasheet [21 articles]
lerameur - 13:37 28-08-08
Hi,
I am looking at digikey web site the IRFZ44 TO-220AB, there are many
chips available.
I am a bit confuse concerning the resistance Vs Watt coloumn.
I Will take two rando... Read More
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Inverter improvements? [8 articles]
lerameur - 13:24 28-08-08
Hello,
I have an inverter circuit, although I learn that hooking a load
directly to its output is not working.
I was not sure if I should use an opAmp or mosfet, I have the ci... Read More
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DC motor speed control [8 articles]
01:33 28-08-08
hi
This is muralidhar.i am planing to create an electrical bike for that
i am planing to use a dc motor
(12V) but i don't no how to control the speed of that motor since it
i... Read More
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