Latest threads in Electronics Designshow only best voted threads
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OT: O'Bama new immigrant policy has exposed his TRUE country..
President Obama's new immigration policy has brought out the real truth of his background. He is actually Irish: O'Bama. From Los Angeles Times Dec 7, 2014 There are an estimated 50,000 Irish illegal...
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9 years ago
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any FREE finite element analyses SW for anlayzing acoustics?
There are a myriad of free PC Tools out there for circuit simulation, magnetic field, RF/Microwave, etc. are there any free FEA for acoustics? I have an unusal situation where the structure will model...
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9 years ago
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Data Sheet Annoyance
Is this an attempt to obfuscate... figuring that everyone is a dummy and doesn't know De Morgan's theorems? ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | |...
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9 years ago
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OT: Power outage.
Just got to the end of a power outage that lasted about eight hours. The power company's recorded message progressively said that the estimated time for repair was 4:30pm, 5pm, 6:30pm, 8pm, 11pm. The...
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9 years ago
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LT Parts to Stock Lab - Recommendations
I have been using LTSpice and would like to have on hand a selection of LT parts. The type of circuits I build relate to signal generation, amplification and processing; all analog and in the range of...
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9 years ago
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OT: Honest Analysis of Solar Power
Anyone know where I might find an honest ROI analysis of solar power? Everything I find is baloney-nosed in favor of the writer's point of view. I suspect that solar, if you take away subsidies and...
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9 years ago
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PCB type USB connector burn through
PCB type USB connector burn through I have the RTL 2832U E4000 DVB-T tuner in use as receiver for spectrum analysr etc. End less problems with bad contacts in the USB connector. Had a look with a...
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9 years ago
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DDS sort of related thing
We're designing an 8-channel waveform playback box for a aerospace customer. They will load large waveform files into our box, and we'll play them, each at his programmed clock rate. I call it the...
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9 years ago
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Adding a ripple to a DC voltage
Hi all, I have to add a ripple voltage (1Vrms) in serie to a 24V Battery (to build a test bench). The current is about 30A. I was wondering if a transformer in serie with the battery could do the job....
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9 years ago
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UPS constraints
Hi, I want to site a larger (2-3 KVA) UPS in the garage as a convenience for the occasional outages we have, here. Currently, I relocate the smaller ~1KVA units to handle small loads -- replacing each...
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9 years ago
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ECT Schematic
Anyone ever seen a teardown/service manual of one of these? chines/
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9 years ago
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PIC24F clock switching issues
This is just a winge, really. I'm using a PIC24F that supports USB. It has an errata list as long as your arm, and already includes two issues related to switching between clock sources. One basically...
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9 years ago
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DDS wisdom
Hi, all, I have a gig coming in that will have me revisiting my thesis research from nearly 30 years ago, on interferometric laser microscopes. (Fun.) Back in the day, I made a nulling-type phase...
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9 years ago
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Probably trivial, but I'm a programmer - not a ee
I'm building an electro-mechanical doorbell as a gift. An arduino controls 4 servos which actuate 4 mallets on 4 chimes to play a melody. I have the arduino and servos operating as expected,...
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9 years ago
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Recommended Custom Magnetics Supplier
Hi We are currently using a danish supplier of custom magnetics, ranging from small flyback E core type transformers to big toroid common mode chokes, sourced from the far east. The price of the...
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9 years ago
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