I'm using a 40 amp Nippondenso alternator, with a slightly larger diameter pulley that is a micro v-belt(serpentine style). I got it new from Romaine Electric in Seattle for $140 new. It has an internal voltage regulator. It puts out plenty of juice.
-----Original Message-----
From: josrph berki <jskmberki@windstream.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, Sep 21, 2010 3:21 pm
Subject: [FlyRotary] Alternator