Latest threads in Electronics Designshow only best voted threads
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OT The Brain
After a car accident the guy is in a minimally-conscious state for two years, they give him a sedative for a procedure, he starts talking to several people, even uses the cellphone. Two hours later...
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9 years ago
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My Variable Frequency HV Power Supply
I have designed this variable frequency, variable pulse width HV power supply as a bench test device for experimental use. Here is the schematic: And here is the Vero board layout: Can viewers please...
19
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9 years ago
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19 | |
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Resurrecting a dead generator
Having removed the inverter from my dead inverter generator, and replaced such wiring as seemed necessary, I was able to get the generator part running today. Fortunately, the electronic ignition...
20
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9 years ago
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20 | |
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HELP! AADE L/C meter
I see that AADE is closed; one-man shop, he is sick as all heck. I need a repair or replace as my meter, when reading 22mH/88mH inductors is (as many know) unreliable (to be polite). All cap scales...
86
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9 years ago
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86 | |
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Pretty Cool eBay Find
I was browsing through eBay, as I love to do, and came across this ground penetrating radar for a couple hundred bucks. They normally sell for a lot more, so I said what the heck, let's see if it...
12
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9 years ago
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12 | |
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OT: MOSIS
Anyone run a MPW on MOSIS recently? Quoting a buddy also in this biz... "MOSIS doesn't put it prices on their page anymore. You have to use the automated quote system. I mean, come on, who wouldn't...
2
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9 years ago
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Flexible topology for RFC 1918 addressing
Hi, I use 10/8 addresses, here. But, damn near everything I bring into the house arrives on 192.168/16 or 172.16/12. So, it's usually annoying to get it to "play nice". Compounding this is my desire...
28
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9 years ago
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28 | |
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Low Current LED
I have an application where I need an LED to light on about 1.1 mA. It doesn't hav to be real bright, just indicate thaat a battery is good. Du e to my wish to make it power switch free, the design is...
11
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9 years ago
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11 | |
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Connect to Internet Through USB Port?
Many laptops today do not have an RJ45 socket. But they do have a USB socket. Is there any way to use the later to connect by cable to a desktop Wi-Fi modem? I am thinking of some kind of adaptor that...
15
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9 years ago
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15 | |
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Why Hasn't This Been Done with Silicon Carbide
Today's microprocessors are all made using the CMOS logic family. It has the advantage of using a minimum amount of electricity, since - exce pt for leakage currents, which are becoming more important...
44
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9 years ago
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44 | |
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High capacity batter for radio controlled helicopter
I have a radio control helicopter that has a 150 Mah battery. Could I upgrade to this one for longer run times ? It would probably weigh a little more, but the motor is pretty strong.
7
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9 years ago
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7 | |
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Allied tube power transformer
Several years ago I remember buying an Allied Electric branded power transformer similar to this one: ab=overview But if I recall correctly the unit I bought was somewhat smaller; the primary had no...
3
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9 years ago
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3 | |
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Optos vs Digital Isolators, the truth?
Hi Lately, the digital isolators, like the ISO7521 has prices comparable to regular optos with superiour performance. This page claims the isolators with SiO dielectrics has better lifetime specs than...
17
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9 years ago
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17 | |
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Error message on GPIB program, Help
Hi all, Recap- I had the low Cmos Clock Lithium Battery in a computer. I received a Cmos Clock Lithium Battery from China, had some question about the date code. I installed the Cmos Clock Lithium...
33
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9 years ago
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33 | |
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coffee cake
This is Grammy's Sour Cream Coffee Cake. If this Left Coast storm is as fierce as advertised, and the power goes out, we can live on coffee cake, peanut butter, and rain water for a few days. If the...
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9 years ago
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