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Usefull can be follow link http://www.electronics-lab.com/projects/rf/007/ with parts list, schematics and pcb design.
Very simple diagram looks like this http://www.electro-tech-online.com/attachments/general-electronics-chat/8830d1153670500-fm-receiver-radioshack-special.png It’s the simplest...
First of all chips like 8038 doesn’t work as a arbitrart function generators. 8038 just can generate previously generated functions by VFO and signal shaping and conditioning. Difference between them and arbitrary function generators is that those second one can make signal that user want, with...
Many companies has special tools that allow conversion between IDE and USB. Thanks to that you can easily plug an IDE device to USB, but you still need to have own schematic . Below you can find list of tools for that:
IC’s
Cypress there are also a lot of design files.
Aliusa with a New...
the result of connection two batteries the same batteries with different voltages for example 1V with 2V will be discharging the second one throught the 1V battery. It will be something like short circuit.
If batteries are made with different material, not necessary. All depends of resistance...
Steeper motor works in continuously mode
It is possible to switch stepper motor from hard disk drive into continuously mode, so you can use it for clock, LED pov,
Firstly pay attention that stepper motor is not responsible for spinning the disk! Stepper is that who moves the head! Please...
Serial port PIC16F84 Programmer is powered by RS-232. to built it you need just a few components.
There are somy examples to burn the PIC 16F84 with windows xp MPLAB as a softowre. It works with +/-15V on driver lines.
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This is description of transformer winding. Core could comes from old broken transformer. Good ratio isbout 200:1 if you want to get 2,400V from 12V. Additional elements that you may need is some part of PCV pipe. You can reshape it by the heat air. Wire gauage is #18SWG while internal #325WG...
We try to answer for question which of those system is better.
Firstly let’s try to explain. Common cathode is a LED diode that emitting multisegment light, by a single positive voltage. Each of individual segment consist separate cathode connections. Common Cathode is opposite – powered by...
Free sample chips!
Many manufactures offers a free samples of their electronics tools. To get some you need just fill right form and you will get free sample. For companies it great marketing job, for us – great way to get some nice electronics elements.
Here you can find a list of producers...
PMPO vs RMS watts
Those symbols are used for radio power. The real power is RMS (Root Mean Square), while PMPO means music power (Peak Music Power Output). How to compare those – you need to split PMPO by 3 and then you will get RMS (almost). For example if you have JVC with 19W RMS / 50W PMPO...
Her’s the problem of MOSFET switcher that allows to swith between two power supplies with logic signal 5V. First supply is 3.3V at maximum 5A , second is 12V with 1A.
Trouble is that theory ( working diagrams) are sometimes strongly different than practical process.
Assumption was to get...
Those symbols are used for radio power. The real power is RMS (Root Mean Square), while PMPO means music power (Peak Music Power Output). How to compare those – you need to split PMPO by 3 and then you will get RMS (almost! not exacltly ). For example if you have JVC with 19W RMS / 50W PMPO...
At the present times there are so many different motherboards for Personal computers that choosing right one could be series problem. At the very beginning we need to decide with what components, board shell work. Very useful for finding what can we plug to our mainboard, is motherboard diagram...
What is the difference between current source and current sink?
At first side you may find it the same, but it is not. Those terms are connected with current direction. When you have a sink, current will flow into output of device. Opposite with current source, in this case, current goes out...
elements that I used :
- monitor by Compaq TFT5015 – contrast 300:1, 15” -1024x768, I’ve removed anti reflex layer
- fresnels 330 and 220
- lens **broken link removed**
- box made of waterproff plywood , 6mm thin
- ventilators – bigger one from xero, smallest from PC and Xbox360
- reflash from...
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