Puede uno comprar o construir un generador de BF, o se puede utilizar el mp3 con estos tonos:
http://www.mediafire.com/download.php?mg1i5izmzmm
Para completar, algunos tutoriales para construir un cmoy, un RA-1, y algún kit:
http://www.mediafire.com/download.php?3mfn24mh23h
http://williamneo.blogspot.com/2008/03/most-simply-diy-instruction-on-cmoy.html
http://williamneo.blogspot.com/2008/01/diy-cmoy-headphone-amplifier-for.html
![](http://3.bp.blogspot.com/_0URxOBSyTPQ/R-X9WO-ri_I/AAAAAAAAAbE/a7C09p8vKHg/s1600/Cmoy%2Bnb_standard.jpg)
http://www.headphoneamp.co.kr/ftp/sijosae/Gallery/
http://tangentsoft.net/audio/cmoy-tutorial/
http://williamneo.blogspot.com/2008/03/grado-ra1-headphone-amplifier.html
![](http://www.jseaber.com/cMoy/v202/cMoyBBx202Final.jpg)
http://jseaber.com/cMoy/
http://www.jseaber.com/cMoy/shop/index.htm
http://www.ahkang.org/audio/Building%2520the%2520Jaben%2520CMOY%2520diy%2520kit.html
http://jaben.wordpress.com/2007/07/29/building-your-own-portable-amp/
http://www.diyfactory.com/projects/headphoneamp/a47_assembly_and_schematic.pdf
Saludos, Raúl
http://www.mediafire.com/download.php?mg1i5izmzmm
Para completar, algunos tutoriales para construir un cmoy, un RA-1, y algún kit:
http://www.mediafire.com/download.php?3mfn24mh23h
http://williamneo.blogspot.com/2008/03/most-simply-diy-instruction-on-cmoy.html
http://williamneo.blogspot.com/2008/01/diy-cmoy-headphone-amplifier-for.html
![](http://3.bp.blogspot.com/_0URxOBSyTPQ/R-X9WO-ri_I/AAAAAAAAAbE/a7C09p8vKHg/s1600/Cmoy%2Bnb_standard.jpg)
http://www.headphoneamp.co.kr/ftp/sijosae/Gallery/
http://tangentsoft.net/audio/cmoy-tutorial/
http://williamneo.blogspot.com/2008/03/grado-ra1-headphone-amplifier.html
![](http://www.jseaber.com/cMoy/v202/cMoyBBx202Final.jpg)
http://jseaber.com/cMoy/
http://www.jseaber.com/cMoy/shop/index.htm
http://www.ahkang.org/audio/Building%2520the%2520Jaben%2520CMOY%2520diy%2520kit.html
http://jaben.wordpress.com/2007/07/29/building-your-own-portable-amp/
http://www.diyfactory.com/projects/headphoneamp/a47_assembly_and_schematic.pdf
Saludos, Raúl