Latest threads in Electronics Designshow only best voted threads
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2N2369D
Hi Guys, I have several Texas TO5 packaged devices marked "2N2369D" with six leads coming out. I can only find this device number on the net in a TO18 case with three leads. Could this be a dual...
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9 years ago
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Question about current from stun gun
Hi all, I noticed from another conversation that commercial stun guns are current limited to 1ma to 4ma hopefully making them non-lethal. I ran across this homemade stun gun that seems to light a...
7
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9 years ago
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New Subcircuit Posting
A new subcircuit has been posted... Hysteresis_Element_Behavioral.zip to the Device Models & Subcircuits page of my website... Subcircuit "Hysteresis" takes as Input a Voltage > HYST/2 and Outputs +/-...
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9 years ago
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Sinking Heat From a Surface Mount Footprint to the Chassis
I am looking for ways to conduct heat from a copper surface on PCB to the chassis. My current plan is to do this with a #4 standoff. On the PCB I would use a Seastrom Manufacturing metal flat washer...
83
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9 years ago
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comet
Rosetta is finally getting close. -- John Larkin Highland Technology Inc jlarkin at highlandtechnology dot com Precision electronic instrumentation
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9 years ago
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dessert
One scoop of vanilla bean ice cream and one tablespoon of 10 Cane rum. -- John Larkin Highland Technology Inc jlarkin at highlandtechnology dot com Precision electronic instrumentation
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9 years ago
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Identify component SEM TI39 CF51
This Oculus Rift teardown identifies this component as a TI single inverter. It's not that. It's a Samsung chip but I don't know what. It is surrounded by inductors.
7
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9 years ago
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Optical Fiber Bundle
Dear Group, I need to build a fiber bundle with these specs: 3 mm aperture NA greater than about 0.39 length of about 2 meters absorption less than about 1 dB per meter from 650 to 900 nm, ideally...
15
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9 years ago
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Encoder recommendations?
Hi, all, I need a knob encoder with a nice expensive feel and good durability. I really like the CUI C14D32P-B3, but (a) only Digikey stocks them, and (b) they cost $19, which while not prohibitive is...
16
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9 years ago
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16 | |
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Noise Models [Lost the thread of something, something learning oscillators]
John Larkin posted a model in LTspice using four stages of rand() functions and then a low pass to generate a gaussian 1 Vrms noise source. When I went back to reply to that post, yes, I deleted...
4
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9 years ago
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Million Dollar Universal Outlet
Follow-up on "Google's Million Dollar Inverter" Jan: want universal DC Mike: require UL & NEC approval. Me: want everything For $1,000,000, we will give you 10,000 smart outlets with build-in...
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9 years ago
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@ DJ Delorie
Can you export your BLDC controller schematic to eagle ? I dont work with gEDA and am used to eagle. As far as i know there is no converter for this. Regards !
2
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9 years ago
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cheap usenet
FWIW for the next day or so is offering a 25GB block account (this means no date related expiry) for $1.49 USD. Thats several years of my mainly text Usenet access for less than I've been paying per...
3
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9 years ago
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Reverse recovery time of Schottky diodes
Folks, Have to design a boost converter that creates around 150V from 20V, north of 100 watts. Since this can cause grief with core losses it has to run continuous mode. So I need a diode with no or...
44
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9 years ago
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44 | |
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PCB Testing after Design
Hi, I'm a newbie when it comes to hardware design. I have a little bit of exper ience with PCB design and made a couple of small circuits for learning purp oses. I need to test out this new PCB...
12
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9 years ago
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