` ::::::::I'm not suggesting a definition of terms, or that a formal distinction between electric and electronic even exists.  But I don't think we need references to accept that many people have a narrow conception of electronic.  Google books certainly believes that electric amplifier is a term.  You might also want to consider electric guitar amplifier (1,140 hits) against electronic guitar amplifier (8 hits) although that term should perhaps be taken as electric-guitar amplifier.  In any case, it really doesn't matter since the proposed article title is simply ``Amplifier``. '''''' `