AMPLIFIERS Stern’s Mullard 5-10 valve power and pre- amplifier, 1964 Quad Manufacturing Co, ‘QUAD II’ valve power amp, 1953 Quad Manufacturing Co ’33 / 303 / FM3′ hi-fi, 1967 Pye H.F.25 Provost power amplifier & H.F.25A Proctor control unit, 1955 Leak TL/12 “Point One” valve power and pre-amplifier, 1948 Leak TL/10 “Point One” valve power and pre-amplifier, 1950 Dynatron LF59B valve power amplifier, 1947 Dieter Rams, TS45 Receiver, Braun, 1964 Armstrong Audio, Model 227 stereo valve tuner-amplifier, 1964