A40 Parts List

     
   

 
 
 

 

  The following information was taken from a post at the DIY Audio Forum, I did not want to loose this great work done by:  Eric L. Santanen  esantane@bucknell.edu
Assistant Professor of Management Information Systems
Department of Management
206 Taylor Hall
Bucknell University
Lewisburg, PA 17837

http://www.facstaff.bucknell.edu/esantane/

Pass Labs a40 amplifier Parts & Suppliers list

I think the list below contains everything needed for the Pass Labs a40 amplifier (except fuses, switch, and audio connectors). I am relatively new to the area of DIY electronics, so please let me know if I've pegged anything incorrectly! I haven't purchased anything just yet, still learning and investigating.

http://www.par-metal.com/12series.htm Par-Metal Custom chasis - 12 Series 12w 20d 7h
http://www.plitron.com/Pages/prices.htm PLITRON #097060201 625VA dual 24V 13A toroid
http://www.audioxpress.com/bksprods/pcbs/pcbj-5.htm a40 circuit board - Audio Xpress
http://www.digikey.com/EC/V3CatalogPages.html Metal Film Resistors - Digikey pg 409 - Panasonic 1210 type
http://www.fairchildsemi.com/search/search.cgi/design?keywords=2n5248&x=52&y=1 2N5248 FET - Fairchild Semiconductor
http://www.fairchildsemi.com/pf/MP/MPSL01.html MPSL01 NPN - Fairchild Semiconductor
http://www.fairchildsemi.com/pf/MP/MPSL51.html MPSL51 PNP - Fairchild Semiconductor
http://www.fairchildsemi.com/pf/1N/1N4148.html 1N4148 Diode - Farichild Semiconductor
http://search.newark.com/part_detail.phtml?PART%5FID=250&VID=250&10005=58F509 Wakefield 423A Heatsinks (0.67c/w each) - Newark Electronics
http://www.newark.com/C118_modules/7102.html Tantalum Capacitors - Newark Electronics - 17F2020
http://www.newark.com/C118_modules/7337.html 500v Silver Mica Caps - Newark Electronics
http://www.cornell-dubilier.com/csdcmcmain.htm Computger Grade Caps - Cornell Dubilier (search)
http://www.cornell-dubilier.com/dpff1600.htm 1500v Cap - Cornell Dubilier DPFF16S1J
http://www.cornell-dubilier.com/CD550.HTM 50v Silver Mica Caps - Cornell Dubilier CD5FY301J03
http://www.web-tronics.com/webtronics/passive-electronic-components-resistors.html Carbon Resistors - Web Tronics ($7 Minimum) RG-xxxx
http://www.web-tronics.com/webtronics/passive-electronic-components-capacitors-polyester-capacitors.html Mylar Capacitors - Web Tronics 23BK410
http://www.web-tronics.com/webtronics/semiconductor-devices-rectifiers-35-amp-bridge-rectifiers.html 35 Amp Bridge Rectifiers - Web Tronics MB351
http://www.web-tronics.com/webtronics/bfr90tompf102.html MJ11015 & 16 Transistors - WebTronics
http://www.web-tronics.com/webtronics/oct-09.html Soldering Heat Sink - WebTronics

The Motorola output transistors require adjusting the output bias (original Lambdas are 25 ohms, the Motorolas are 40 ohms), but I'm not sure exactly how to go about that just yet. I'm still learning here, which is the main reason I've only been finding sources and not making purchases just yet.

     
     
 
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