PartTimeProjects Welcomes You

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

There are not many, but this stuff takes 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.




   
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
Aleph X A Pass Labs Aleph "X" which so  
(In Progress) far just makes smoke when    "Pearl" A "Pearl" MOSFET and JFET
turned on.   (April 2007) based phono preamplifier.
  From Pass Labs.
Chipamp - LM3886 A LM3886 stereo amplifier with
   
(April 2004/ mod in 2005) differential input and ultra low    
noise power supply for   Room Acoustics
input circuitry
  Hanging Bass Traps Hanging acoustic absorbers
  (May 2007) made out of Owens Corning 703.  
Chipamp - LM4780 A LM4870 based "parallel"  
(May 2006) amplifier in a "lunch box."   Corner Tube Traps Corner acoustic absorbers tubes
  (June 2007) made out of rigid mineral wool.
 
Preamplifiers  
X-CCS-BOSOZ Implementation of a Pass Labs
  Other
 
(Nov. 2004, mod in Jan 2006) "bride of son of zen" line stage   Soft Start Circuit My own PCB for soft starting an  
preamplifier.   (July 2005) amplifier circuit.  
   
Balanced Buffer A differential stereo buffer with
  Test Signals Downloadable audio test tones  
(July 2007) a stereo input and quad output,    (August 2005) about 1 minute in length.    
for driving 2 amplifiers from a    Uncompressed WAV stereo  
single preamplifier.   format.  
   
iPod Accessory/ Buffer A differential line driver for   CES 2006, p. 1 Picturesof CES 2006 hgh end  
(November 2004) connecting an iPod to a   (January 2006) audio equipment, page 1 of 2.  
balanced preamplifier    
  CES 2006, p. 2 Pictures of CES 2006 high end  
  (January 2006) audio equipment, page 2 of 2.  
   
  Amplifier Stand An amplifier stand filled with   
  (May 2007) sand.  
   
  Guest Pages Send me your DIY pics and you
  (In progress...) could have your very own
  guest page!
 
   
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