Luxman WL313 (1967–1968)
The WL313 is an early solid-state FM/AM tuner from Luxman, released in Japan in October 1967 at ¥64,000. By around 1970 the price had crept up to ¥65,000. It was built while Luxman was moving away from tube designs. The fact sheet notes it was conceived as an all-transistor improvement over the WZ30, which had been the company's top tube tuner. The WL313 was designed to pair with the Luxman SQ1220 integrated amplifier, and the two share a matching front-panel look.
The tuner covers the Japanese FM band (76-90 MHz) plus AM from 525-1,605 kHz. It is transistorized throughout, with 24 transistors, 3 FETs, 1 SCR, and 21 diodes. It also has muting, a noise filter, and an output level control. Specs from the period list FM practical sensitivity (IHF) at 2 µV, signal-to-noise of 60 dB or better, and separation of 42 dB or more at 1 kHz. The stereo frequency characteristic is rated from 30 Hz to 15 kHz, with distortion no more than 1%. It draws 15 VA and weighs 9 kg, and it measures 476 × 190 × 275 mm.
Not much hands-on reporting survives. The main source is a Dutch restorer's page (hilberink.nl), which calls the WL313 a "nice Luxman tuner with good performance." FM sound is reported as good, stereo acceptable, and both the noise switch and muting work as intended. AM is not very sensitive, though strong stations come through fine. The same source flags the usual age-related problems. The electrolytic capacitors have typically lost most of their capacity and need replacement, and re-aligning the stereo decoder is described as time-consuming work. A review with test data of the SQ1220/WL313 combo exists in Swedish, but no English-language period review of this model has surfaced.
- Type: FM/AM tuner, solid-state
- FM: 76–90 MHz (Japan band); AM: 525–1,605 kHz
- Practical sensitivity (IHF): FM 2 µV; AM 35 µV
- Output voltage: 770 mV
- Power consumption: 15 VA
- Dimensions: 476 × 190 × 275 mm; 9 kg
- Released October 1967 at ¥64,000
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