PartTimeProjects Welcomes You

Welcome to my website, parttimeprojects.com! Here you will find pictures and descriptions of my projects.

There are a few but hey, this stuff took a lot of time!

All Projects made in Southern California, USA


Feel free to give me (LGreen) your anonymous comments by entering them below (ok to omit your email), or click here, to send an email to me.

  Grid Ver:  01_27_10
Amplifiers
  Phono Preamplifiers
Krell KSA-50 A "Clone" of the Krell KSA 50   "Bugle" A "Bugle" opamp based,
(August 2005) Amplifier, 50 WPC, Class A.   (February 2007) battery powered phono
  preamplifier
 
DX HRII A class AB Amp, designed by   "Pearl" A "Pearl" MOSFET and JFET
(May, 2009) Carlos in Brazil!  50 WPC.   (April 2007) based phono preamplifier.
  From Pass Labs.
   
Krill Innovative biasing and 100 WPC    
(January, 2010) from this DIY design.   Room Acoustics
  Hanging Bass Traps Hanging acoustic absorbers
ExtremA The  name "Extreme" says it all.   (May 2007) made out of Owens Corning 703.  
(November, 2009) 70 WPC, virtually no distortion,  
and its Class A of course.     Add Outer Support and pillowtop
 
  Corner Tube Traps Corner acoustic absorbers tubes  
Pass F5 A big class A amp.
  (June 2007) made out of rigid mineral wool.  
(May, 2009) 25 Watts per channel, 8 ohms    
 
Chipamp - LM3886 A LM3886 stereo amplifier with    
(April 2004/ mod in 2005) differential input and ultra low   Other
 
noise power supply for   Soft Start Circuit My own PCB for soft starting an  
input circuitry.  50 WPC.
  (July 2005) amplifier circuit.  
   
Chipamp - LM4780 A LM4870 based "parallel" amp   Test Signals Downloadable audio test tones  
(May 2006) in a "lunch box."  50+ WPC.   (August 2005) about 1 minute in length.    
  Uncompressed WAV stereo  
  format.  
Preamplifiers    
X-CCS-BOSOZ Implementation of a Pass Labs
  CES 2006, p. 1 Picturesof CES 2006 hgh end  
(Nov. 2004, mod in Jan 2006) "bride of son of zen" line stage   (January 2006) audio equipment, page 1 of 2.  
preamplifier.    
  CES 2006, p. 2 Pictures of CES 2006 high end  
Balanced Buffer A differential stereo buffer with
biamp buffer
  (January 2006) audio equipment, page 2 of 2.  
(July 2007) a stereo input and quad output,     
for driving 2 amplifiers from a    Amplifier Stand An amplifier stand filled with   
single preamplifier.   (May 2007) sand.  
   
iPod Accessory/ Buffer A differential line driver for   Ikea Stereo Rack (Mod) An Ikea TV stand modified for
(November 2004) connecting an iPod to a   (October 2009) a bunch of monster amplifiers
balanced preamplifier  
 
  Guest Pages Send me your DIY pics and you
  (In progress...) could have your very own
Headphone Amplifiers http://www.parttimeprojects.com/audio/diy/Images/CMoy/CMoy%20Front%20View.jpg
  guest page!
CMOY A "CMoy" Headphone amplifier      
(October 2008) That Runs off 9V batteries or AC,      
and has 2 inputs and an RCA output.    
   
   
   
   
   
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