Rotel RD-20

Circa
1 9 7 5 c.1975
1 9 7 6 1976

Rare cassette recorder in Tandberg style with MIC/line mixing, seven LEDs, a built-in limiter, memory reset and a pretty tape run indicator.

Who built it for Rotel ?
Tatung ?
Tensaï ?
Rotel ?

Rotel RD-20, image 1
Rotel RD-20 specifications
Title Value
Heads : 1x deep-gap Permalloy rec/play
1x ferrite erase
Motor : 1x electronic-governor DC
Tape speed : 4,76cm/s
Wow & flutter : 0,07% playback
0,1% rec+play
FF & Rew time : 95s (C60)
Bias frequency : 100Khz (± 5Khz)
Erase ratio : > 60dB (1Khz, +20dB VU)
Track crosstalk : > 55dB
Channel separation : > 40dB
Channel balance : ± 0,5dB
Frequency response : 30Hz...15Khz (-3dB, Type I)
22Hz...15Khz (-3dB, Type II)
22Hz...16Khz (-3dB, Type III)
S/N ratio : 48dB (Dolby OFF, Type I)
48dB (Dolby ON, Type I)
53dB (Dolby OFF, Type II)
60dB (Dolby ON, Type II)
50dB (Dolby OFF, Type III)
59dB (Dolby ON, Type III)
Inputs : 0,8mV / 2kOhm (MIC)
66mV / 42kOhm (RCA line)
10mV / 20kOhm (DIN line)
Outputs : 690mV / 5kOhm (RCA line)
350mV / 90kOhm (DIN line)
Dimensions : 45,8 x 7,5 x 24,5cm
Weight : 6kg.
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page online since : april 2012
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