AMC8877-1.2DBTF AMC8877-1.3DBTF AMC8877-1.5DBTF AMC8877-1.8DBTF AMC8877-2.5DB AMC8877-2.5DBT AMC8877-2.5DBTF AMC8877-2.85DB AMC8877-2.85DBT AMC8877-2.8DBTF