|
| Lo-D FT-400 |
|
| 49,000yen(around the 1974 time) |
The AM/FM stereo tuner which aimed at sound without
coloring.
The 4 pole MOS FET is adopted as the front end of FM tuner, and the implementation of a high sensitivity and a low noise property is aimed
at.
Moreover, a mechanical filter and a monolithic IC are adopted as the IF
section, and many properties are raised.
The monolithic IC was adopted
as FM multi-circuitry, and the low-distortion property and the separation are
improved.
FM muting circuit is carried and a reduction of an
inter-office noise is possible.
The adapter termination of an FM4ch
broadcast use is carried.
|
| Form |
FM/AM tuner |
| <FM tuner part>
|
| Practical speed |
2 microvolts (IHF) |
| SN ratio |
65dB |
| Capture ratio |
1.5dB |
| Effective selectivity |
46dB |
| Antenna input impedance |
300-ohm balance type
75-ohm unbalance
type |
| Output voltage |
0 - 0.5V variable |
| <AM tuner part>
|
| Practical speed |
18 microvolts |
| Effective selectivity |
35dB |
| SN ratio |
46dB |
| Output voltage |
0 - 0.5V variable |
| Output load impedance |
1kohm |
| <Synthesis>
|
| An attached functionality |
FM muting
Output-voltage
conditioningregulation
Antenna Attenuator
Discrete 4ch output-terminal
Signal strength meter
Center tuning meter |
| The semiconductor used |
Transistor: 13 pieces
FET: One piece
IC: Three pieces
Diode: 16 pieces |
| Supply voltage |
AC100V, 50Hz/60Hz |
| Power consumption |
15W |
| Dimensions |
Width 418x height 137x depth of 313mm
|
| Weight |
6.5kg |
|
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