Latest threads in Electronics Designshow only best voted threads
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Internet Telephone
Does a simple Internet telephone interface exist? I think perhaps not, or not at a cost less than $200. Google finds plenty of devices, but most have complexities I just don't want. Let me explain and...
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7 years ago
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Intel
and same thing here and Some day someone will write a really good book about the rise and fall of Intel, and the effect of Intel on creating the predatory culture of Silicon Valley. Intel has clung...
19
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7 years ago
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Momentary > 5 seconds > Latch
I'll probably end up getting a 50 cent PIC and do this but screwed around with a 4011, a latching SCR -- 555 trying to do it with minimum parts count. Just curious if you (experts) come up with...
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7 years ago
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Domestic US source for small quantity of CA3127 transistor array?
I'm looking for one or two of these arrays for a small home project. Yes, I know they're available from China on eBay, but I'd much rather find a couple of vintage (and authentic and working) parts...
18
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7 years ago
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Semi OT: Detroit leads the way in EV technology
Tesla is fun to watch, but GM has the clout to bring inexpensive long-range electric vehicles to the masses. In general, compared to what Tesla and GM have in the pipeline, the EV offerings by the...
109
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7 years ago
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109 | |
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LHC Black Holes
I was explaining black holes to a friend who asked about the LHC and thought about what might happen if a tiny black hole were created. I believe matter falling into a microscopic black hole would...
150
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7 years ago
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jitter on SPI interface and clock-domains
Hi, I am currently again learning some more VHDL and the exercise project I am working on now is to implement SPI slave. This is to be used in combination with a STM32F103 maple mini clone. Question....
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7 years ago
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Maximum current for analog switch
Say I use an analog switch like this one to drive a capacitance or rather the gate of a FET to turn it on with 5V and turn it off shunting to 0V It's a 20 ohms part if driven from 5V The gate has...
53
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7 years ago
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TE - Quick disconnect power connectors for heavy gauge cables
For those of you doing high current stuff. 4 AWG to 3/0 Kind of pricey though < > < >
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7 years ago
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Measuring radius of spherical cap
I can only access part of it. But, have a fairly large surface area to work with (about a 3" diameter slice). How can I get a *reasonably* good estimate of its actual radius? I thought, perhaps, a...
47
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7 years ago
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satellites
This is really cool: http://stuffin.space/ use the mouse roller to zoom, and click-hold to spin around.
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7 years ago
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OT: Random question for the physics guys
Re-watching some of this series with the SO and, cuz I'm a nerd the question occurred to me: Is an object falling through the lower atmosphere at terminal velocity as massive as the Galactica creating...
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7 years ago
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Triacs vs. Relays
In a (very) recent project, I have successfully used a tiny triac[1] in a mains voltage switching role. 40 years ago I'd have used a relay for this and I can't think of any alternative in those days....
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7 years ago
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Open source VHS: how would you do it?
As a budding member of the Obsolete Interfaces Mafia, I'm always on the lookout for ways to implement things no-one is using anymore. Some time ago, I found a video on YouTube of someone driving...
47
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7 years ago
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home-made VNA
I saw this recently: One thing I like about it is that it drives the LO port of the mixer with square waves which should work better (more linear output amplitude vs. input amplitude and more stable...
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7 years ago
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