+++ 1966.b. Philips EL3310 - world 1st cass. having manual and auto recording level
+++ 1963.a. Philips EL3300 - world's first "compact-cassette"recorder - the classic starting point of "cassette" era
++ 1964.f. Norelco 150 - first compact-cassette (TM) recorder made by Philips for USA
+ 1965.c. Philips EL3301