Background info
PCB making
How to make printed circuit boards on a budget
PCB making
How to make PCB's, by Mario Hanczarek
transistor SOA
How to determine the transistor safe operating area
Overview of Available Downloads
SOA excel file
The excel file for determining transistor safe operating area.
XO-Zipfile
The 3 Gif files for the XO-clock PCB in one ZIP-file
LspCad
LspCad shareware version
SpeakerTest Jig
PDF document of the info on the Speaker Test Jig on Eric Wallins
Webpage
Board file
Cadsoft eagle .brd file for the multichannel amplifier.
What's New
01 september 2004
Added a text on PCB making by Mario Hanczarek (see link at top of page)
01 september 2004
Udated my list of
books
page
11 february 2004
Added a small part to the opamp
headphone amplifier
page
06 october 2003
Added a list of
books
04 october 2003
Added a page on determining the
transistor safe operating area.
03 september 2003
Added a page about my new
8 channel amplifier
08 june 2003
Added a page about my new
PC speakers
14 march 2003
Updated the
CD player upgrade
page, because I made a new pcb for the XO
25 august 2002
Updated the
Monitorspeakers
page, because I did some additional measurements
11 august 2002
Updated the
Monitorspeakers
page, because they're finished!!
06 august 2002
Updated the
Monitorspeakers
page
05 august 2002
Added a destruction page to my
mtm speakerpage
13 june 2002
Added a description of the
Speaker measurement jig
I built
14 may 2002
Updated the info on my
Monitorspeakers
page
13 may 2002
Gave the website a muchneeded makeover, with some
help.
04 april 2002
Added a description of the
Monitorspeakers
page
21 february 2002
Updated the info on my
Hybrid headamp
page
30 january 2002
Finally finished my
cd rack
23 january 2002
Added a description of an opamp based
headphone amplifier
I built
25 december 2001
Changed some general layout issues and handling of large images
25 december 2001
Updated the info on my
Hybrid headamp
page
25 december 2001
Started filling in the
music
page
25 december 2001
Updated
resources
page
18 december 2001
Updated the page for my new
cd rack
17 december 2001
Updated the page about the
cd player modification
15 december 2001
Added a description of how I replaced the cable on my
Beyerdynamic DT-931
04 december 2001
Added a subpage for my new
cd rack
03 december 2001
Added an overview of available downloads
01 december 2001
Added a description of my
cd player modification
20 november 2001
Added What's New list in Other Info section (this page....)
11 november 2001
Updated
Main Page
10 november 2001
Added
Speaker Project
07 november 2001
Added subpage for
Hybrid Headphone Amplifier plan
07 november 2001
Filled in the
Future Plans
page
28 october 2001
Created the
Resources
page
12 october 2001
Added
Headphone Amplifier Project
october 2001
Started website, added basic layout and the various main pages.
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