Amplifiers
The engine of sound reproduction has been involved in many evolutions. The
first amplifiers consisted mainly of electron tubes. Then the transistor was
introduced and quickly took over from valve amplification. Nowadays most amplifiers
are based on silicon technology, but the tube is still alive!
AG9009 (1958)
AG9000 (1954)
AG9004 (1957)
AG9013 (1959)
AG9014 (1959)
AG9015 (1959)
AG9006 (1956)
AG9019 (1967)
22GH925 (1967)
22GH919 (1967)
22GH923 (1967)
AG9018 (1964)
22GH949 (1968)
22GH943 (1968)
22RH591 (1969)
22RH551 (1975)
22RH590 (1969)
22RH580 (1969)
22RH521 (1972)
22RH520 (1973)