Latest threads in Electronics Designshow only best voted threads
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Soldering to Ni/Au pads
So I have this bunch of very small InGaAs photodiodes (60-micron diameter) that are wire bonded to a ceramic carrier with 100 microinches of gold over 75 microinches of nickel. Problem is, the entire...
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8 years ago
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rant: Sears Sucks
There are only two appliance stores in the small town of Truckee, and Sears is close to us. We've bought appliances and beds from them, and they have been great. But it's an affiliate store, a Sears...
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8 years ago
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OT: Opinions about this situation?
OT: Opinions about this situation?... An alternate question... at what frequencies are these "devices" controlled ?>:-} ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | |...
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8 years ago
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28 | |
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OT? Shawyer EMdrive Independently "Verified"
A scientist with "a long history of experimentally testing (and debunking ) breakthrough propulsion systems" has replicated the Eagleworks results- 2 0 micronewtons thrust for 700W input. He can't...
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8 years ago
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How to double PCI clock?
Classical 5V PCI, that is. Is there a small IC for this? I need a 66 Mhz clock generated from the 33Mhz of the PCI bus, but can not seem to find an IC that is specified for the PCI input spikes of...
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8 years ago
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How to blow up an LM395
I use these as "bullet proof" output pass elements. One is used to drive a 50 ohm heater. (~30V p-p PWM) I had a few reports that the circuit would not turn off, it was always heating. I had one user...
12
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8 years ago
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American War Doco
I'm not a great fan of American documentaries on American War efforts, but I found this one which I could only describe as excelent (on Netflix plus elsewhere no doubt) Ken Burns: The War There are...
2
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8 years ago
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"Obsolete" PIC parts
How in the heck can one discover if a given IC part is obsolete even tho Microchip flags ALL in their list as "Production"? For example, the PIC16F628A, or the PIC16F648A, or the PIC18F13K50. Seems if...
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8 years ago
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Transformer design question -- what does 'strand' mean
Could some electronics guru please clarify this a bit ? Going over Col. Lyman's classic text on inductor/transformer design (especially switching transformers) I came upon the term 'strands'. For...
12
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8 years ago
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Spice help please
I was given a preamp circuit where inputs were connected together via very inductive pickup that has a fairly high winding resistance. the NI input also goes to ground via a 3.3Meg resistor, and the...
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8 years ago
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Street LED Light & Power Driver - Surge and Over Voltage/temperature Protection Solution
Hi, We found there are many different ways of protection designs on LED lights and the power driver. But the surge and over voltage, frequent inrush start-up current will always harm the life of each...
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8 years ago
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Breaking the Shannon Channel Capacity Limit
These guys claim a new modulation method that exceeds the data transmission rate set by the Shannon limit. Any opinions? Opinions on this topic that is, I KNOW you all have considerable opinions on...
40
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8 years ago
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Oklahoma City Sonic Boom Tests
I never knew about these. The wiki article is actually pretty funny. "the NORC reported that 73% of subjects in the study said that they could live indefinitely with eight sonic booms per day, while...
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8 years ago
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OT: Stormy Landing
Awesome coolness!
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8 years ago
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Semi OT: LED traffic light failures
This summer when out driving, I've been noticing more and more partial failures of LED traffic lights. It's always the green signal - the failures seem to range from a few "knockout" failures of the...
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8 years ago
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