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:  08_14_10
Amplifiers
  Headphone Amplifiers
http://www.parttimeprojects.com/audio/diy/Images/CMoy/CMoy%20Front%20View.jpg
Krell KSA-50 A "Clone" of the Krell KSA 50   CMOY A "CMoy" Headphone amplifier
(August 2005) Amplifier, 50 WPC, Class A.   (October 2008) That Runs off 9V batteries or AC,
  and has 2 inputs and an RCA output.
 
DX HRII A 50 WPC Amp, designed by  
(May, 2009) Carlos in Brazil!  Class A/B.   Phono Preamplifiers  
  "Bugle" A "Bugle" opamp based,
  (February 2007) battery powered phono
Krill Innovative biasing and 100 WPC   preamplifier
(January, 2010) from this DIY design.  
  "Pearl" A "Pearl" MOSFET and JFET
ExtremA The  name "Extreme" says it all.   (April 2007) based phono preamplifier.
(November, 2009) 70 WPC, virtually no distortion,   From Pass Labs.
and its Class A of course.     
   
SymAsym "AAK" Version A DIY amplifier designed by the
  Room Acoustics
(June, 2010) DIYer for the DIYer.  100 WPC   Hanging Bass Traps Hanging acoustic absorbers
Class A/B.    (May 2007) made out of Owens Corning 703. 
 
Pass F5 A big, hot, class A amp gives you  
Add Outer Support and pillowtop
(May, 2009) 25 WPC into 8 ohms.  Worth it?   Corner Tube Traps Corner acoustic absorbers tubes
  (June 2007) made out of rigid mineral wool.
Chipamp - Bridge Parallel A pair of LM4780s per channel
 
(August, 2010) connected in "bridge parallel"  
configuration for about 180 WPC    
  Other
 
Chipamp - LM3886 A LM3886 stereo amplifier with
  Soft Start Circuit My own PCB for soft starting an  
(April 2004/ mod in 2005) differential input and ultra low   (July 2005) amplifier circuit.  
noise power supply for    
input circuitry.  50 WPC.
  Test Signals Downloadable audio test tones  
  (August 2005) about 1 minute in length.   
Chipamp - LM4780 A LM4870 based "parallel" amp   Uncompressed WAV stereo  
(May 2006) in a "lunch box."  50+ WPC.   format.  
   
  CES 2006, p. 1 Picturesof CES 2006 hgh end  
  (January 2006) audio equipment, page 1 of 2.  
Line Stage Preamplifiers
   
X-CCS-BOSOZ Implementation of a Pass Labs   CES 2006, p. 2 Pictures of CES 2006 high end  
(Nov. 2004, mod in Jan 2006) "bride of son of zen" line stage   (January 2006) audio equipment, page 2 of 2.  
preamplifier.    
  Amplifier Stand An amplifier stand filled with  
Balanced Buffer A differential stereo buffer with
  (May 2007) sand.  
(July 2007) a stereo input and quad output,    
for driving 2 amplifiers from a   Ikea Stereo Rack (Mod) An Ikea TV stand modified for
single preamplifier.   (October 2009) a bunch of monster amplifiers
 
iPod Accessory/ Buffer A differential line driver for
 
(November 2004) connecting an iPod to a   Guest Pages Send me your DIY pics and you
balanced preamplifier   (In progress...) could have your very own
  guest page!
   
   
   
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