VICTOR/JVC MCT-104
¥ 33,800 (around 1969)
Commentary
104 series FM/AM tuners.
High sensitivity is achieved by using FET and 3-row varicon for the front end.
Two ICs are used in the IF stage, and various characteristics are improved and stable performance is obtained.
This IC was developed for FM intermediate frequency amplification, and is a linear semiconductor integrated circuit including a ratio detector and a grounded collector amplifier for low frequency.
In addition, the 3-stage configuration of the differential amplifier provides excellent limiter characteristics.
These two ICs contain 19 transistors and 16 diodes.
Equipped with a muting switch, it can eliminate unpleasant noise when selecting FM channels.
Equipped with a noise filter switch.
With this function, you can cancel the noise when it occurs due to poor radio wave conditions.
Uses a design that uses a circular illuminated dial.
Ferrite bar antenna is used in the AM tuner section.
The converter uses an IC constant-voltage power supply to ensure stable operation.
Model Rating
| Type | FM/AM Tuner |
| FM Tuner Section | |
| Circuit system | 3-row varicon, FET, 1-stage RF, separately excited oscillation type, superheterodyne, ratio detection system |
| Receiving frequency | 76 MHz to 90 MHz |
| Intermediate frequency | 10.7MHz |
| Practical sensitivity | 1.8 μ V (400 Hz, 30% Mod, S/N30dB) |
| Practical stereo sensitivity | 2.0 μ V (IHF) |
| Distortion factor | 0.5% or Less (400 Hz, 100% Mod) Up to 0.25% (400 Hz, 30% Mod) |
| S/N | 60dB(IHF) 70dB(100%Mod) |
| Spurious radiation | 34 dB or less |
| IF Rejection | 75 dB or More (83 MHz) |
| Image ratio | 65 dB or More (83 MHz) |
| Antenna input | 300 Ω (Balanced Type) |
| FM Multiplex Section | |
| Circuit system | Balance detection type, switching method, mono-stereo automatic switching |
| Separation | 35 dB or More (1 kHz) |
| Distortion factor | Not more than 0.8% |
| Filter | With SCA Filter |
| <AM Tuner Section> | |
| Circuit system | Superheterodyne system |
| Receiving frequency | 535 kHz to 1,605 kHz |
| Intermediate frequency | 455kHz |
| Selectivity | 28dB |
| Sensitivity | 20 μ V (400 Hz, 30% Mod, S/N20dB) |
| Image ratio | 50 dB or More (1,000 kHz) |
| Antenna | With Bar Antenna and External Antenna Terminal |
| <General> | |
| Output | 1.5 v max (400 Hz, 100% Mod) 0.5 v max (400 Hz, 30% Mod) |
| Accessory circuit | Muting Multiplex Noise filter Level control |
| Semiconductor used | IC : 2 FET : 1 Transistor : 15 Diode : 21 |
| Fuse rating | 0.5A |
| Power consumption | 10.6W |
| External dimensions | Width 352x Height 135x Depth 230 mm |
| Weight | 6kg |
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