... . Good quality & price. AS440 Stamford Exitation System AVR:AS440 applicable to Brushless Generator.Stamford AVR Regulator is a compatible replacement for Stamford ... rate: > 1%The 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 ...