Blitzortung_Controller_GPS

Blitzortung Kit Assembly

The Blitzortung lightning detection kit was purchased by my cousin for his home weather station, I assembled the kit and performed initial testing.  This project shows part of the assembly process, final assembly pictures and a couple videos of the initial power-up test.  The begin with, a link to the  Blitzortung.org overview is here. The instructions…

Supermicro_SYS5015A_05

Review: SuperMicro 5015A SuperServer

Manufacturer: SuperMicro Model: SuperServer 5015A-EHF-D525 Web: SuperMicro Place of Purchase: Newegg Cost: $337.98 Overview The SuperMicro series of model 5015 SuperServers fill a very specific niche.  Based on the Intel Atom processor, these computers are not powerful enough to act as a file server or enterprise application server.  It is powerful enough for router configurations,…

Lepai_LP2020A_Amplifier_2

Review: Lepai LP-2020A+ 20W Amplifier

Manufacturer: Lepai Model: LP-2020A+ 20W Amplifier Web: Parts Express Place of Purchase: Parts Express Cost: $17.00 Garage Sound Last winter’s project was to be a small, somewhat powerful amplifier for use in the garage.  It didn’t go so well, and ultimately it ended in defeat.  I received a flier from Parts Expess, inside was the…

GamingPC_Assembly_06

New Computer Build: Midrange Gaming PC

Manufacturer: Various Model: Various Web: n/a Place of Purchase: Newegg.com Cost: $778.56 Project Overview It’s been about eight years since the last gaming computer build, at that time it was AMD 64bit processor with a Gigabyte motherboard, 2GB RAM and nVidia GeForce video.  Since that build, two separate game laptops have been purchased, both lacking in…

Shuttle_DS437_13

Review: Shuttle DS437 Fanless Computer

Manufacturer: Shuttle Model: DS437 Fanless Computer Web: shuttle.com Place of Purchase: Newegg.com Cost: $209.99 The goal of this project is spec out a computer that can be used in a manufacturing environment and run Windows 7.  The environment dictates sealed and fanless, Windows 7 dictates something other than an Atom processor.  Up to this point, two different computers have been…

Pittsburgh_Precision_Screwdriver_2

Review: Pittsburgh 33 Piece Precision Screwdriver Set

Manufacturer: Pittsburgh Model: 33 Piece Precision Screwdriver Set Web: harborfreight.com Place of Purchase: Harbor Freight Cost: $9.99 Modern electronics continue to shrink in size, and with the shrinking physical size so to the fasteners get smaller.  In the past, the jeweler screwdriver sets were sufficient to disassemble small gadgets, but no longer.  There are all…

IMG_20140316_074819171

20W Amplifier Project – Circuit Complete

Read the previous entries for this project: 20W Amplifier Project 20W Amplifier Project – Redo 20W Amplifier Project – Prep Work The remaining components finally arrived, the work can begin on the volume, tone and balance portion of the circuit.  A couple things of note before the work is detailed.  First is that all the…

Amplifier_20W_Prep_7

20W Amplifier Project – Prep Work

This is the continuatioin of the 20W Amplifier Project.  The previous two entries can be found here and here. With the main part of the 20W amplifier assembled and operational, it’s time to focus on control volume.  In the circuit it shows a 10k audio taper pot on the input, which works OK.  It would…