http://www.whatcircuits.com Search for what circuits you need. Wed, 30 Jul 2008 05:58:36 +0000 http://wordpress.org/?v=2.5.1 en http://www.whatcircuits.com/audio-circuits/audio-amplifier-audio-circuits/tube-gainclone-for-diy-buffs/ http://www.whatcircuits.com/audio-circuits/audio-amplifier-audio-circuits/tube-gainclone-for-diy-buffs/#comments Wed, 30 Jul 2008 05:58:36 +0000 admin http://www.whatcircuits.com/?p=1084 http://www.whatcircuits.com/audio-circuits/audio-amplifier-audio-circuits/tube-gainclone-for-diy-buffs/feed/