Latest threads in Electronics Designshow only best voted threads
| Subject | Author | Posted | Replies | |
|---|---|---|---|---|
|
|
My Geomagnetic Amplifier Circuit
This is a high gain instrumentation amplifier, based upon the Analog Devices AMP01, I designed to detect low intensity ELF's in real time and amplify them to drive a small calibration coil. The signal...
34
|
9 years ago
|
34 | |
|
|
Question regarding diac-triac lamp dimmers
Could some electronics guru please hekp ? Maybe this is a stupid question, but here we go. Simple AC kine based lamp dimmers use a diac triac pair with a capacitor that gets charged via a resistor...
8
|
9 years ago
|
8 | |
|
|
OT: Printing from Windows 7 via SMC Barricade router?
Folks, Did everything in the book. Configured it via a TCP/IP port because the SMC software will not run on Windows 7 Professional 64-bit. This direct method generally works also on machines with...
126
|
9 years ago
|
126 | |
|
|
Op-Amp Help
Hi I would like to amplify a variable input voltage to a regulated 5 volt. Th e variable input voltage comes from the pulse coil my bike which is 50mv at low rpms and increases upto 30 volts at high...
18
|
9 years ago
|
18 | |
|
|
Tek TDS380
Hi, A friend/colleague has 6 TDS380's to EoL. Is it worth his trouble to list them on eBay (individually)? Or, just take the tax writeoff for a charitable donation?
7
|
9 years ago
|
7 | |
|
|
GPIO - raspberry PI
Hi to all. Am looking for some ultra simple, ready made script for this task: - start the script on boot - set high on some 3V GPIO - wait for 2 seconds - set low and exit the program This is used for...
3
|
9 years ago
|
3 | |
|
|
Electric magnet efficiency and dimensions?
Using any volume and shape, what are the optimum dimensions for an electro magnet with a given amount of power? I noticed I could add more turns of a larger gauge wire to increase the amp-turns,...
13
|
9 years ago
|
13 | |
|
|
Few watt RF amplifiers
Hi, all, Happy New Year. I'm working on a parts list for a medium-fancy demo system, and I need a couple of RF amps that are good for 2-3 W at 1 dB compression, over a frequency range of about 30-100...
27
|
9 years ago
|
27 | |
|
|
Nature takes its revenge ;-)
...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: skypeanalog | | |...
66
|
9 years ago
|
66 | |
|
|
Remove Potting Compound for Repairs
Someone brought in a small device for me to repair that is potted in what appears to be black epoxy. I told them to simply buy another, but it cannot be replaced. Can someone with success in this...
10
|
9 years ago
|
10 | |
|
|
Rechargable battery in small sealed container
Hi - does anyone have experience or know some issues around making a water proof device that contains a rechargeable LiPol battery? Charging would be done through a waterproof USB port. Can these...
4
|
9 years ago
|
4 | |
|
|
Virtual ground topology
I recently saw a single supply opamp circuit that had what looked like an interesting virtual ground topology. The incoming signal needed to be differential for the rest of the circuit, so there's an...
4
|
9 years ago
|
4 | |
|
|
Looking for a microphone which goes to 50kHz or so
There is an allegation that a particular aviation headset causes tinnitus. It is one of a number of active noise reduction (ANR) headsets on the market. An ANR headset uses basically a mike, a tiny...
34
|
9 years ago
|
34 | |
|
|
Strange Russian Transmitter Circuit
Can anyone please have a look at this circuit and tell me what it is doing, or supposed to do? Better yet if you can decipher the parts in Russian. It is supposed to be some kind of "secret" device...
25
|
9 years ago
|
25 | |
|
|
Sinewave inverter
I had (naively, perhaps) thought that the main reason for having a transformer in a sinewave inverter circuit was to provide isolation, between the mains voltage output and the low voltage input, so...
7
|
9 years ago
|
7 |