Optonica RT-1515B
Dolby B NR

This Optonica RT-1515B is a stereo cassette deck with Dolby B noise reduction, it was first sold by Optonica in 1978.

The main features of the Optonica RT-1515B cassette deck are: 2 heads, mechanical 3 digit tape counter, manual tape type selection and capable of handling normal, chrome and ferro-chrome tapes with additional manual equalization selection, 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 Optonica RT-1515B cassette deck are analog needle VU reading meters with peak indicator for easy adjustment of optimum recording level. Mechanical transport controls for reliable Optonica RT-1515B transport function selection.

The Dolby-B system reduces tape hiss on tapes recorded on the Optonica RT-1515B 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
  • APSS (Auto Program Search System)

Historic events

1978 The first satellite in the modern Navstar Global Positioning System (GPS) is launched.

Features of Optonica RT-1515B

Connectors
Connectivity
2 Mono Microphone Inputs RCA Input/Output Connectors Headphones
Display
Display
3-Digıt Mechanical Counter Analog Needle Meters
Electronics
Electronics
Peak Limiter
Cassette Exterior
Exterior
Orientation Left Front Loading
Compact Cassette
General
Stereo
Head Configuration
Head Configuration
2 Head Desiǥn 4 Track / 2 Channel
Indicators
Indicators
Record Peak Indicator Cassette Back Lighting
Noise Resuction
Noise Reduction
Dolby-B Noise Reduction
Controls
Operation
Music Scan Timer Recording/Playback Line / Mic Input Select Blank Search Mechanical Transport Control
Power
Power Requirements
Alternating Current
Preamplifier
Preamplifier
Microphone Level Adjust (Left/Right) Individual Input Level Controls
Tape Speed
Speed
1⅞ ips - 4.76 cm/s
Tape
Tape
Manual Tape Type Selection Ferro-Chrome Tape Capabilıty Normal Tape Capabilıty Manual Tape Equalization Chrome Tape Capabilıty
Transport
Transport
Auto Shutoff Mechanical Tape Loading Sìngle Capsŧan Transport Belt Drive (Capsŧan)

Similar to Optonica RT-1515B from the period 1978