Welcome to prokopyshen.com

I am an independent Information Technology consultant providing design, build, engineering and programming services for AWS hosted linux platforms.  I have extensive experience in the design and operation of platforms for quantative financial analysis using external data feeds such as Markit or Factset as well as  LAMP-stack web hosting. 
 
I have more then 10 years experience in python and mySQL specializing in quantatitive finance.  I have been an active user of the pandas library for quants for over 5 years.  As well, I can provide support  for users of Quantopian's offline open source zipline back tester facility. 
 
If your business - especially startups - is located in Michigan's Oakland County Automation Alley , please send me a mail for networking purposes so we can get to know each other.
 
In my blog I write about my experiences with Arduino, classic stereo equipment , and the web hosting business of Daily Fantasy Sports .
 
For more information on services or availability please  Contact Me .

Bose 501 Series III Speakers : Woofer Foam Repair Kit by Speaker World Online

Bose sold these floor standing systems in the early 1980s which is when I bought my set new.  They look great, are substantial units and I have had years of good listening with them.

After 35+ years, the woofer foam that mounts to the cone and the metal frame had deteriorated to the point where a repair was needed.  When this has had happened with other  speakers, I usually just bought replacements and moved on.

But with these Bose woofers, I was impressed at the magnet size, the design of the cone and the overall quality of the materials so I decided to refoam them myself with a kit from Speaker World online.com

[Note: Speaker World online.com are not sponsors of this post.   I paid full price for this kit and this is an independent review]

I knew before I bought the kit that this was going to be a lot of work so let’s get started and I will share my experience.

Product Review : Harbor Freight Central Pneumatic item 61615 3 Gal oilless pancake air compressor

AirC-61615Every now and then, I look around my shop and decide I need to make changes usually because I am out of space or I realize there are better ways to work. Recently I decided to downsize to a pancake style air compressor and add a retractable hose reel.

 

This is my review of the Harbor Freight Central Pneumatic item 61615 Three gallon oilless pancake air compressor.

Product Review : Harbor Freight Central Pneumatic item 93897 Retractable Hose Reel with 50ft Air Hose

HoseReel-93897Every now and then, I look at around my shop and decide I need to make changes usually because I am out of space or I realize there are better ways to work. Recently I decided to downsize to a pancake style air compressor (see my review here) and add a retractable hose reel.

This is my review of the Harbor Freight Central Pneumatic item 93897 Retractable Hose Reel with 50ft Air Hose.

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