Revox Model 40 integrated stereo amplifier

Year of manufacture:

1962 - 1965

Manufactured by:

Willi Studer, Regensdorf, Zurich. Distributed by Revox (UK), 296 Kensington High Street, London, W.14.

Price when new (in the UK):

£50 8s

Description:

Integrated amplifier

Mono/stereo:

Stereo

Power output:

10 watts per channel

Harmonic distortion:

less than 0.5% at 10 watts and 1000c/s

Frequency response (+0/-1dB):

30-20,000 c/s, measured at Radio input, tone controls set at "0"

Power response:

35 - 20,000 c/s ±1dB

Signal to noise ratio:

Better than 60 dB for Na = 10 watts, maximum volume, inputs short-circuited

Crosstalk damping:

Better than 60 dB, 50 to 15kc/s, maximum volume, inputs short-circuited

Output impedance:

4, 8 or 16

Tone controls:

Switched in 7 increments of 4 dB to give a range of ±12 dB at 50 and 10,000 c/s

Balance control:

—10dB each channel

Inputs:

phono: 5 mV 100,000

, RIAA equalisation
tape: 1.2 V 300,000

radio 1 and 2: 150 mV 200,000

Tape output:

150mV

Tubes:

1 x ECC83, 3 x ECC81, 4 x ECL86

Dimensions:

width 15½ in., height 4¾ in., depth 10¼ in (391 x 121 x 260 mm)

Weight:

20¾ lb (9.43 kg)

Power consumption:

80 watts

Power supply:

110, 125, 145 & 220 V AC, 50 - 60 c/s