
SANSUI TU-999 |
|
59,900yen(around the 1970 time) |
The highest-class FM/AM tuner which prepared for the
full-scale FM age and was developed thoroughly in pursuit of high S/N and
low-distortion-izing.
An input-proof is high in a front end part, and has adopted the three low
noise dual gates MOS FET and 4-unit linear variable condensers as it, and
the stable reception is realized.
The combination of
three ICs, a crystal filter, and a block filter is adopted as IF stage, and
selectivity is improved in it.
LC type a carrier leakage filter and a
SCA filter are used for a multi-circuitry.
The stereo only switchpoint which receives only the radio wave of stereophonic
broadcasting is carried.
The automatic gain control circuit carries the switchpoint changed to three steps in an AGC property, and a good reception is possible for it regardless of a close range and a far range.
AM tuner part has adopted the triple
variable condenser and the large-sized ferrite bar antenna, and is improving the
exclusion capacity of jamming.
A 2m scheme is adopted. Moreover, the
AM/FM/FM stereo indicator is carried.
A FM-MPX noise cancellar, the
muting switch, the level control, the level adjuster, FM auto functionality,
etc. are carried.
The wood case was an option.
|
Form |
FM/AM tuner |
<FM section>
|
Received frequency |
76MHz - 90MHz |
Sensitivity |
1.4 microvolts (20dB)
1.8 microvolts
(IHF) |
THD |
0.5% |
S/N ratio |
65dB |
Selectivity |
70dB |
Capture ratio (IHF) |
1.5dB |
IF rejection |
100dB |
Image ratio |
90dB |
Spurious response |
100dB |
Stereo separation |
38dB |
Unnecessary radiation |
34dB |
Antenna input impedance |
300-ohm balance
75-ohm unbalance
|
<AM section>
|
Received frequency |
535kHz - 1605kHz |
Sensitivity |
150 microvolts (bar antenna)
30
microvolts (IHF) |
Image frequency rejection |
80dB |
Selectivity |
20dB |
<Synthesis>
|
Output voltage |
0V-2V
Tape Rec:0.4V |
Power consumption |
19W |
Dimensions |
Width 435x height 155x depth of 316mm
|
Weight |
10.1kg |
Option |
Wood case C-5 (4,150yen) |
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