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Dolby B NR

The Toshiba PT-470 is a stereo cassette deck with Dolby B noise reduction, it was introduced by Toshiba in 1974 with a list price of USD $250 and discontinued 2 years later in 1976.

The main features of the Toshiba PT-470 are: 2 heads, analog 3 digit tape counter, tape type selection with support for normal and chrome tapes, belt driven single-capstan transport.

Typical of this deck is the 70's top loading layout 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 PT-470 are analog needle VU reading meters. Mechanical transport controls for reliable PT-470 transport function selection.

The Dolby-B system reduces tape hiss on tapes recorded on the PT-470 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

Historic events

1974 DuPont introduces chromium dioxide (CrO2) cassette tape.
1975 The first calculator watch was launched by Pulsar.
1976 The first digital sampling synthesiser was the Computer Music Melodian

Features of Toshiba PT-470

2 Mono Microphone Inputs RCA Input/Output Connectors DIN Input/Output Connector Headphones
3-Digıt Mechanical Counter Analog Needle Meters
Cassette Exterior
Silver Finish Orientation Left Top Loading Wood Case
Compact Cassette
Head Configuration
2 Head Desiǥn 4 Track / 2 Channel
HighCom NR
Noise Reduction
Dolby-B Noise Reduction
Mechanical Transport Control
Microphone Level Adjust (Left/Right) Individual Input Level Controls
Tape Speed
1⅞ ips - 4.76 cm/s
Normal Tape Capabılity Chrome Tape Capabılity
Sìngle Capsŧan Transport Belt Drive (Capsŧan) Mechanical Tape Loading Auto Stop

Similar to Toshiba PT-470 from the period 1974 - 1976