Optonica SM 3636. Optonica ST 3636. Optonica RT 3838.
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1,258.00

Optonica SM 3636. Optonica ST 3636. Optonica RT 3838. Optonica tower.
Fully revitalized
The set has been fully reviewed and serviced.
In our projects we do not use veneers that are thin, unreliable and, above all, not resistant to damage!
We use only the highest quality veneers,  i.e. wood sheets of 3-5mm thickness. Thanks to this solution and the bonding technology we have developed, our products are equipped with durable and beautiful enclosures.
 

Description

Optonica SM 3636. Optonica ST 3636. Optonica RT 3838. Optonica tower. Fully revitalized

 

In 1912, Tokuji Hayakawa established a metal workshop in Tokyo. One of his first inventions was the Ever-Sharp mechanical pencil from which the Sharp Corporation takes its name. After the business was destroyed by an earthquake in 1923, the company moved to Osaka and began designing the first generation of Japanese radio sets under the name Hayakawa Metal Works. They were launched in 1925. In 1942, the name was changed to Hayakawa Electric Industry Company. In 1953, the company began producing the first Japanese TV sets, and in 1964 it developed the world’s first transistor calculator. The company was renamed Sharp Corporation in 1970, and 6 years later it launched the Optonica brand to compete with high-end audio equipment from brands such as Sansui, Sony, Panasonic, Sanyo, Yamaha, Fisher, Technics, Pioneer, Harman Kardon and Marantz. All products offered under the name Optonica were made in Japan from the highest quality components. Optonica’s amplifiers, receivers, tape recorders and tuners quickly gained recognition on the market and a large fan base. One of the brand’s most iconic devices, however, is the RP-3636 direct-drive turntable, sought after by contemporary collectors and audiophiles for its unique Mikage Granite Stone design. After the advent of the digital era, Sharp decided to end the production under the Optonica brand in the late 1980s.

The SM-3636 amplifier is one of the iconic and highly appreciated models fully designed and manufactured in Japan. This is the real “legendary” sound of the Optonica – natural, clear and, most of all, free from distortions and any misinterpretations.

The ST-3636 tuner is just as successful a product of Optonica as the amplifier from the same line. In this case, the company also took care of the highest quality of components, which is reflected in, among other things, the unusual sensitivity of the device during tuning. ST-3636, in addition to standard functions, also has a solution rarely found in tuners, i.e. its own independent volume control.

According to the Optonica catalog from 1978, the RT-3838 is not a cassette deck in the traditional sense, but a “tape processor”. This model has been equipped with a quartz timer that enables advanced control of the tape recorder. All information is visible on the LCD screen.

The models have been equipped with new enclosures made of teak wood which give the set an elegant look. The wood finish is Chinese oil produced from natural oils. The wooden enclosure is removable, as the original metal enclosure is underneath.

Potentiometers in perfect condition. The device has been fully reviewed and serviced.

Each model has a new green illumination of the front panel.

 

Technical data:

SM 3636 amplifier

– power: 2 x 55W at 8 Ohm, 2 x 65W at 4 Ohm, stereo
– frequency response – 5Hz – 70kHz
– total harmonic distortion: 0.05%
– input sensitivity: 2,5mV (MM), 150mV (line)
– signal-to-noise ratio: 70dB (MM), 90dB (line)
– weight: 18 kg
– impedance 4 Ohm – 8 Ohm
– damping factor – 40
– output sensitivity: 150mV (line), 30mV (DIN)
– volume reduction – 20dB
– dimensions: 48.5cm x 16.5cm x 32.5cm (width x height x depth)
– year of production 1978 – 79
– made in Japan.

 

ST 3636 tuner

– Mono/ stereo analog tuner
– FM range 87.6 -108 MHz, does not require re-tuning
– tuning of FM, MW bands
– FM tuning range: 87.6 – 108 Mhz
– MW tuning range: 520 – 1620 kHz
– sensitivity: 1.4uV (FM), 400uV (MW)
– signal-to-noise ratio: 65dB (FM)
– distortion: 0.8% (FM), 1.5% (MW)
– selectivity – 72dB (FM)
– frequency response – 30Hz to 15kHz (FM)
– output sensitivity 350 mV (FM), 200mV (MW)
– weight: 10 kg
– dimensions: 48.5cm x 16.5cm x 32.5cm (width x height x depth)
– year of production 1978 – 79
– made in Japan.

 

RT 3838 tape recorder

– 2-head compact cassette deck
– heads: recording/playing, erasing
– tracking system: 4-track, 2-channel, stereo
– belt speed: 4.75 cm / s
– noise and flutter: 0.15%
– frequency response: from 30 Hz to 16 Khz
– signal-to-noise ratio: 60 dB (dolby B)
– output: 0.775V (line)
– input 50mV (line), 0.2mV (microphone)
– dimensions: 48.5cm x 16.5cm x 32.5cm (width x height x depth)
– weight 12 kg
– year of production 1977 – 79
– made in Japan.

Additional information

Weight 50 kg
Dimensions 60 x 50 x 50 cm