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Sci.Electronics.Design
Sci.Electronics.Design is a worldwide Usenet news group that is used to discuss various aspects of Electronic Circuit Design.
There are 5007 threads in our archives.
You are looking at page 19 of 501.
The threads with the newest articles are listed first.
Lewis Engineering Pyrometer
Paul Hovnanian P.E. - 2010-02-18 23:10:00
Just picked this up (cheap). But with no manuals and none to be found
via Google.
I'll have to pick up some Type J thermocouple wire and goof around with
it. In the mean time, has anyone here had...
Otptofets [6 articles]
Jon Slaughter - 2010-02-18 23:04:00
Are there devices that are fet based and have optical isolation? e.g., maybe
something that uses a transformer to isolate the gate? I remember seeing, I
think from TI, some very small transformer ...Boosting oven temperature range [2 articles]
D Yuniskis - 2010-02-18 22:22:00
Hi,
I've a small oven rated 200C. I wonder what sort of issues
would be involved in increasing this to ~300C? Obviously,
putting more power into the unit, etc.
But, I worry about things like...Fast And Gate, 1 Ghz [38 articles]
2010-02-18 20:47:00
Can anyone suggest a fast AND gate at 1-2 Ghz. A friend of mine needs
to measure a laser pulse duration on almost no budget, perhaps
200-300$. The Pulse ranges from 4 to 20 Nanoseconds, and his cur...Determining quark mass via electron scattering
fitz - 2010-02-18 14:54:00
Determining quark mass via electron scattering
(click link)
http://www.amperefitz.com/quark.mass.htm
Enjoy,
Fitz
...About 56kHz IR receivers [5 articles]
pimpom - 2010-02-18 13:27:00
How common or uncommon are 56kHz IR receiver modules? I'm asking
about their use in consumer products rather than about their
availability on the market.
I wanted to use some 56kHz receivers bu...OT: Tieing Off Unused Pins in Quartus II Blocks [17 articles]
Gary Brown - 2010-02-18 12:59:00
Hi,
I am new to Altera's Quartus II. During design I often want to
define a block's inputs and outputs but leave all or part of the
design for latter. Unfortunately, just leaving inputs or
...Ohm's Law Problem [85 articles]
Bill Bowden - 2010-02-18 12:56:00
Ohm's Law Problem:
Find the voltage at the 2 junctions of a 3 element voltage
divider across a supply voltage of 8.4 volts. The two
junctions of the divider both supply external current of 5mA...Rewinding a shorted SMPS transformer [10 articles]
Jim Flanagan - 2010-02-18 08:33:00
I have a defective SMPS transformer which I cannot replace and
am contemplating rewinding the primary which has shorted
internally. I've rewound 60Hz power transformers in the past with
no probl...Help identifying shaft encoder technology [7 articles]
MarkAren - 2010-02-18 00:52:00
I took a look inside the shaft encoder attached to a DC servo motor
and was rather expecting to see a standard A/B quadrature optical
assembly with a glass wheel, an LED illuminator and the usual op...