... . Brushless, 3. Self excited. 4. Good quality & price. Meccalte SR7 AVR Voltage Regulator:The SR7 type voltage regulator is an advanced ... and single phaseThe following are our products:1. CF Brushless AVR: CF-8A, CF-12A, CF-15A,SAVRH-75A, SAVRH-PCB ... , SAVRL-75A, SAVRL-PCB.2. Stamford AVR: AS440, MX321, MX321-A, MX341,MX341-A, SX440, SX440-A ...