Optonica RT-3000
Dolby B NR

This Optonica RT-3000 is a stereo cassette deck with Dolby B noise reduction, it was first sold by Optonica in 1975.

The main features of the Optonica RT-3000 are: 2 heads, mechanical 3 digit tape counter, tape type selection and capable of handling normal 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 RT-3000 are analog needle VU reading meters with peak indicator for easy adjustment of optimum recording level. Mechanical transport controls for reliable RT-3000 transport function selection.

The Dolby-B system reduces tape hiss on tapes recorded on the RT-3000 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.

Compact Cassette

Historic events

1975 TDK unveiled its SA (Super Avilyn) line of tapes, the first nonchrome high-bias tape.

Features of Optonica RT-3000

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

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