Search found 2703 matches

by haklesup
Thu Jan 10, 2019 11:31 am
Forum: General Discussion
Topic: Something Wrong with Coupling Capacitor
Replies: 7
Views: 145

Re: Something Wrong with Coupling Capacitor

https://www.aliexpress.com/item/Class-A-regulator-HIFI-tuning-board-5532-fever-front-2-0-tuner-upgrade-power-amplifierS-FINISHED/32823382970.html Are you talking about those two big orange caps 3.3uF, 100V. Are you sure the are in series and used for decoupling. A schematic of the board and a block ...
by haklesup
Wed Jan 02, 2019 5:12 pm
Forum: General Discussion
Topic: Sorry, could not resist to post...
Replies: 27
Views: 2977

Re: Sorry, could not resist to post...

I guess I missed the joke, all the links above are now dead ends.
by haklesup
Thu Dec 27, 2018 10:58 am
Forum: General Discussion
Topic: Resistor Color Codes
Replies: 9
Views: 276

Re: Resistor Color Codes

But how does an idea get from paper to 1000000 units produced by robot? You do not set up a robot assembly line for a one-off prototype. Then there are short run eqiupments where robot assembly may not make sense. And, even on mass produced items they probably go with color coded axial leads for a ...
by haklesup
Thu Dec 20, 2018 3:37 pm
Forum: General Discussion
Topic: Resistor Color Codes
Replies: 9
Views: 276

Re: Resistor Color Codes

A fan I see :) , Not my fault, this guy gives good reasons, I can think of more. https://www.quora.com/Are-Chinese-using-a-different-color-code-for-electronic-resistors I looked in the play store and I was wrong, While there are many resistor color code calculators, there were few scanners or reader...
by haklesup
Thu Dec 20, 2018 11:10 am
Forum: General Discussion
Topic: Odd Commercial Products.........
Replies: 31
Views: 835

Re: Odd commercial Products.........

Forget about Underwear hackers, this guy's got our backs (or whatever) https://www.vice.com/en_us/article/zmdxnj/meet-brad-the-guy-keeping-your-vibrator-safe-from-hackers I like the toast printer, Inspired by Jesus Toast no doubt, perfect for Christmas. Now I just need a 3D printer to make Cheese do...
by haklesup
Thu Dec 20, 2018 10:50 am
Forum: General Discussion
Topic: Resistor Color Codes
Replies: 9
Views: 276

Re: Resistor Color Codes

Many, maybe Most modern resistors (leaded types) are now marked with a numerical code. Don't you think color codes are almost obsolete? In any case, there are apps if your eyes aren't up to he task. I always had trouble because color shades vary from maker to maker and background colors also make th...
by haklesup
Tue Dec 18, 2018 12:03 pm
Forum: General Discussion
Topic: ok,, New Project time,,,
Replies: 13
Views: 695

Re: ok,, New Project time,,,

Here is the datasheet, its a bit old school and doesn't contain many application examples. http://pdf.datasheetcatalog.com/datasheet/intersil/fn1080.pdf The high and low inputs are pretty much a differential amp input high impedance. I suppose you could ground the neg imput and operate it single end...
by haklesup
Tue Dec 18, 2018 11:50 am
Forum: General Discussion
Topic: Odd Commercial Products.........
Replies: 31
Views: 835

Re: Odd commercial Products.........

I see, I thought it predicted #2 too I can see a market for certain medical conditions and toddlers (who wouldn't leave it on anyway) maybe elderly with dementia but healthy people especially that skinny young model shouldn't need one. Get ready, Cell phone accessory makers are poised to convince us...
by haklesup
Mon Dec 17, 2018 1:51 pm
Forum: General Discussion
Topic: Odd Commercial Products.........
Replies: 31
Views: 835

Re: Odd commercial Products.........

Well, if you can stick one on your kids before you go on a road trip so you don't have to stop in the first 10 miles.... Haha

Seriously, how does it work?
by haklesup
Mon Dec 17, 2018 11:35 am
Forum: General Discussion
Topic: Odd Commercial Products.........
Replies: 31
Views: 835

Re: Odd commercial Products.........

The world is littered with Obsolete Digital cameras but ones that tried to hold onto film technology a bit too long really missed the bus. The film companies just couldn't transform into technology companies fast enough. Refrigerators with internet aren't really taking over the world either, in orde...
by haklesup
Fri Dec 14, 2018 11:58 am
Forum: General Discussion
Topic: Odd Commercial Products.........
Replies: 31
Views: 835

Re: Odd commercial Products.........

I'm not convinced the microwave TV is not just a Photoshop spoof.
by haklesup
Thu Dec 13, 2018 12:36 pm
Forum: General Discussion
Topic: Looking for a Specific IC Embedded Systems
Replies: 1
Views: 144

Re: Looking for a Specific IC Embedded Systems

you want a dev board kit that supports a uController with the features you need for a given project. First step is to select a processor family with a range of chips with varying I/O, A/D and interface options but all share the same core processor and development software environment. you can read a...
by haklesup
Thu Dec 13, 2018 12:15 pm
Forum: General Discussion
Topic: Water Leak
Replies: 8
Views: 278

Re: Water Leak

Check out this one, super easy to install monitor https://streamlabswater.com/ they may have a valve eventually too
by haklesup
Thu Dec 06, 2018 11:31 am
Forum: General Discussion
Topic: ok,, New Project time,,,
Replies: 13
Views: 695

Re: ok,, New Project time,,,

Since you have access to a proportional voltage, the hard part is done. If you want Old School then get a mechanical ammeter movement, figure out the resistor network to get the needle to deflect full scale at 4V and replace the graphics behind the needle with a custom scale 0 to 100%. (assuming it ...
by haklesup
Fri Nov 30, 2018 3:39 pm
Forum: General Discussion
Topic: need help to find blue led bulb
Replies: 17
Views: 516

Re: need help to find blue led bulb

I did reconsider the LED breakdown voltage after I posted, it would be better than 5V but probably insufficient for 120V. Adding another rectifier in series would work but in any case it does appear there are bulbs of this type on the market though not cheap. Not sure how $20 compares to "originals"...