Sharp RT-20
Dolby B NR Metal Tape

The Sharp RT-20 is a stereo cassette deck with Dolby B noise reduction, it was introduced by Sharp in 1982 with a manufacturer suggested retail price of USD $190 and discontinued 6 years later in 1988.

The main features of the Sharp RT-20 are: 2 heads, electronic tape counter with 4 digits, manual tape type selection with support for normal, chrome and metal tapes, belt driven single-capstan transport.

Typical front loading cassette deck with the cassette compartiment located on the left side of the deck. Tape eject is operated mechanically and the cassette needs to be placed with the side to be played facing forward in the cassette well.

Level meters used on the RT-20 are generic digital peak reading meters. Mechanical transport controls for reliable RT-20 transport function selection.

The Dolby-B system reduces tape hiss on tapes recorded on the RT-20 by as much as 10 dB at the highest frequencies.

To make live recordings this deck has 2 microphone inputs to connect microphones with a jack connector. For undisturbed listening a jack connector for a pair of stereo headphones is supplied. Connection to other audio components for plaback can be achieved by a RCA cable and recording from a source by a RCA cable.

Compact Cassette
  • Full Auto Stop
  • Computer Controlled Multi-Display

Historic events

1982 Sony and Philips announce the CD (Compact Disc) in Tokyo
1983 Publication of MIDI (Musical Instrument Digital Interface) standard, a protocol which allows electronic instruments and other digital musical tools to communicate with each other.
1984 The movie "Terminator" is released, revealing advanced computer generated graphics as a main staple in its special effects.
1985 Video8 was introduced, the year that Sony introduced the Handycam, one of the first Video8 cameras.
1986 IBM-PC DOS Version 3.2 (updated) released.
1987 S-VHS (Super VHS) introduction in Japan, an improved version of the VHS standard for consumer video cassette recorders.
1988 Sony begins producing VHS recorders

Features of Sharp RT-20

Connectors
Connectivity
2 Mono Microphone Inputs RCA Input/Output Connectors Headphones
Controls
Controls
Tape Length Selection
Display
Display
Digital Peak-Reading Meters 4-Digıt Digital Counter Remaining Time Digital Clock
Cassette Exterior
Exterior
Silver Finish Orientation Left Front Loading
Compact Cassette
General
Stereo
Head
Head Configuration
2 Head Desiǥn 4 Track / 2 Channel
Indicators
Indicators
End of Tape Indicator
HighCom NR
Noise Reduction
Dolby-B Noise Reduction
Controls
Operation
Timer Recording/Playback Mechanical Transport Control
Preamplifier
Preamplifier
Individual Input Level Controls
Tape Speed
Speed
1⅞ ips - 4.76 cm/s
Tape
Tape
Manual Tape Type Selection Normal Tape Capabılity Chrome Tape Capabılity Metal Tape Capabılity
Transport
Transport
Auto Shutoff Mechanical Tape Loading Sìngle Capsŧan Transport Belt Drive (Capsŧan)

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Last update on Apr 26, 2024 9:05:26 AM CEST

Similar to Sharp RT-20 from the period 1982 - 1988