SONY Model103
¥ 39,800 (around 1962?)
Commentary
A tape recorder equipped with transistor radio.
It is equipped with a radio tuner using Sony's high-frequency transistors.
Ferrite bar antenna is built in.
A microdrive system is used for channel selection.
If you record a tape while receiving the radio, you can record the broadcast as it is.
You can also record while listening to the radio by switching the switch.
A transistor is used in the first stage of the circuit of the tape recorder.
The amplifier uses printed wiring to improve the stability of the circuit.
The AC bias method is used for recording.
You can record up to 2 hours with tape number 7.
Two types of tape speeds are available, with switching between 19cm/s and 9.5cm/s.
A single control system unique to Sony is used for shearing, and the tape can be operated with one knob.
Equipped with a recording meter.
It is possible to record while listening through the speaker.
By using the included 8 mm sync device and Sony Movie Sync, you can make talkie movies easily.
Model Rating
| Type | Tape recorder |
| Tape Recorder Unit | |
| Recording system | AC bias system |
| Track format | Half-width double track system |
| Tape speed | 19cm/s, 9.5cm/s |
| Reel used | Maximum number 7 reel |
| Available recording time | 19cm/s : 30 minutes per side, 1 hour total 9.5cm/s : 1 hour each side, 2 hours total * When using No. 7 tape |
| Output | Up to 2.5W |
| Frequency range | 19cm/s : 50 Hz to 11 kHz 9.5cm/s : 50 Hz to 8 kHz |
| Wow flutter | 0.3% or less |
| Input jack | One System for Microphone, One System for High Level |
| Output jack | (8 Ω) x1 for external speaker |
| Built-in speaker | For all bands : 10x15cm cone type (8 Ω) |
| Recording level indication | Level meter |
| Semiconductors and vacuum tubes used | Vacuum tube 6AV6x1 6AU6x1 6AR5x1 5MK9x1 Transistor 2SD64x1 Diode 1T23x1 |
| Radio Tuner Section | |
| Circuit system | 3-stone superheterodyne tuner |
| Receiving frequency range | 535 to 1605 kHz |
| Antenna type | Built-in bar antenna External antenna jack mounted |
| Semiconductor used | Transistor 2SC73x1 2SC76x1 Diode 1T23x1 |
| <General> | |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | Approx. 57W |
| External dimensions | Width 370x Height 170x Depth 310 mm |
| Weight | Approx. 9.5 kg (Excluding Accessories) |
| Attachment | Microphone F-7B (Dynamic Type) Sony Tape RY-5 Sony Reel R-5 Power cord Sony connection code RK-36 External antenna cord Capstan and pinch roller (one pair for 50 hz or 60 hz) Adhesive tape Movie Sink MS-85 Silicon cloth |
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