Saturday, May 21, 2016

Tuesday, February 23, 2016

How to download youtube video in 1080p resolution :-?

(Unfortunately this method dos not work anymore :()

One way is to use to do all the work.
But this way uses site's bandwidth which is not free.
So if you can, please use the second choice explained below:

Because Youtube split audio and video streams for 1080p videos
one need to download them separately and combine them.

1. Download ffmpeg package.Choose static build.
For Win users here is the link:

2. Find your youtube clip and get its address.

3. Go to and download
both audio and video (1080p) streams. For audio use
Audio AAC 256kb/s option if possible.Always use AAC!
Click \/ arrow next to download link to choose
appropriate format.

4. Go to ffmpeg folder where ffmpeg is installed,
if it is not added to path environment variable
(For Win version go to .\bin\folder)

5. From there, run ffmpeg using command line below:

-map 0 -map 1 -c:v copy -c:a copy -shortest OUTPUT_FILE_NAME

(Win users: You can use combineav.bat.
Copy it to ffmpeg binaries folder and run it like:


Output file name is the name of the video filename.)

NOTE: Make sure that you type full path for INPUT_AUDIO_FILENAME
and INPUT_AUDIO_FILENAME files before them !!

Tuesday, December 22, 2015

Wednesday, April 29, 2015

Removing magnet wire enamel coating Insulation

3. Using acetylsalicylic acid found in aspirin drug:

[1] Put the wire (end) on top of the aspirin tablet. 
[2] Now using hot soldering iron, press against the wire (and tablet).
[3] Hold for 2-3 sec, then check for removal of coating.
[4] Repeat the process if necessary. 
[5] Clean the wire.
This can be combined with usage of smooth sandpaper (see 2).

Monday, March 23, 2015

Basic Soldering Lessons

Basic Soldering Lessons (1-9) ,youtube playlist:

(Produced by PACE, Inc.)

Tuesday, March 17, 2015