Latest threads in Electronics Designshow only best voted threads
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LT Spice powering opamps
I usually have a couple of "voltage" things off to the side, making +5 and -5 or whatever, and have each opamp with little doglegs on its power pins, same net names. Somewhere I thought I saw a...
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8 years ago
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How do I make pcb-lesstif load custom footprints
(newlib) I don't get the footprint in the library window. The default libraries look ok. I've downloaded "pwrjack-2.1-5.5-3pin.fp" from gedasymbols, and put it in a local pkg/newlib directory. I've...
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8 years ago
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Netlist to Veroboard?
I've recently taken up my electronics hobby again. After basics like cleani ng up my shed workshop etc, I'm re-learning a lot of basic stuff I've forg otten during the last 15-20 years. This includes...
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8 years ago
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In The Ever lasting Chain Of Experiments The Next Project, ultrasonics, some question about DANGERS
In The Ever lasting Chain Of Experiments The Next Project, ultrasonic anti-fouling for boats. The asm looks like this, ; Panteltje (c) (anti fouling) Copyright Jan Panteltje 2015-always ; driver code...
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8 years ago
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Way OT: or not? Magnetic monopoles. (mm)
Way OT: or not. Magnetic monopoles. (mm) Back story: My son, 14 , was asking about the universe black holes, (he hates energy conservation.. :^) And I went on line and bought "the First Three...
14
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8 years ago
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Groundplane under SMPS power inductor
I have seen designs where there is a cutout in the groundplane under the power inductor in e.g. a buck converter. Inductor is nominally a "shielded" one. I assume it is to prevent some kind of...
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8 years ago
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algorithm that can distinguish between a sequence of pi digits and e (natural log) digits!!
Hi, Continuing my irrational? quest of compressing and then comparing irrational numbers, I have found a clear bias in the compressed sequences of pi and e. The simple test: 1. black box compression...
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8 years ago
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Now this... this is *really* fast
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8 years ago
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Hey Phil Here is a really good one.
Sweet characteristics.
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8 years ago
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Some names in PCB assembly
I've always stuffed my own boards but now have something maybe 100 -- 500 p ieces to start and looking for some suggestions on pcb assembly outfits. Sc reaming circuits is one that looks interesting...
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8 years ago
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another thermal thing
Here's a chunky TO247 transistor clamped to a heat sink. The insulator is a 20 mil thick slab of aluminum nitride, a sample from Sienna Technologies. Silicone grease on both sides of the AlN. The fet...
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8 years ago
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Thunderbird Issues....
TB seems to be working pretty well for me these days but there is at least one really annoying bug. I don't have to do anything, just randomly a dialog will pop up saying, "You have chosen to open:"...
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8 years ago
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OT: MPLAB error messages
Until today, whenever i did a build of my project code, i got a lot of error messages. Many 305 "Using default destination of 1 (file)", some 302 "Register in operand not in bank 0 Ensure that bank...
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8 years ago
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Magamp oscillator (2023 Update)
Is it at all possible to build an oscillator entirely from non-linear magnetics (OK, solid state diodes are allowed)? Best regards, Piotr
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8 years ago
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Low noise PMT conditionning
Hi all, It has been a long time since my last post on this ng. Hope things are going smoothly for all of you ;-) I'm working on revamping the electronics/software on the application based around a...
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8 years ago
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