Telefunken TC 650M
Dolby B NR HighCom Metal Tape

The Telefunken TC 650M is a stereo cassette deck with Dolby B and High-Com noise reduction, it was introduced by Telefunken in 1980 and discontinued a year later.

The main features of the Telefunken TC 650M cassette deck are: 2 heads, analog 3 digit tape counter and memory stop, manual tape type selection with support for normal, chrome, ferro-chrome and metal tapes (automatic for normal and chrome tapes), belt driven single-capstan transport.

Typical front loading cassette deck with the cassette compartiment located on the center 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 Telefunken TC 650M cassette deck are analog needle VU reading meters. Mechanical transport controls for reliable Telefunken TC 650M transport function selection. Cue and review can be used to easily and quickly locate the beginning of a passage.

The Dolby-B system reduces tape hiss on tapes recorded on the Telefunken TC 650M by as much as 10 dB at the highest frequencies. The High Com system (as used in the Telefunken TC 650M) works as a broadband 2:1:2 compander, achieving almost 15 dB of noise reduction for low and up to 20 dB for higher frequencies, while avoiding most of the acoustic problems observed with other high compression broadband companders. To further maintain recording accuracy, the TC 650M incorporates a switchable multiplex filter. When you record FM stereo broadcasts, the MPX filter of the TC 650M can be swiched on to prevent the standard 19kHz FM pilot signal from interfering with the noise reduction system.

To make live recordings this deck has 2 microphone inputs to connect a microphone with a DIN connector. For undisturbed listening a DIN 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
  • Modular System
  • 2-Motors
  • Sendust Head

Historic events

1980 Dolby C Noise Reduction introduced by Dolby Laboratories.
1981 Dave Smith proposes the Universal Synthesizer Interface that would become the MIDI standard in 1983.

Features of Telefunken TC 650M

Connectors
Connectivity
1 Stereo Microphone Input Headphones RCA Input/Output Connectors DIN Input/Output Connector
Display
Display
3-Digıt Mechanical Counter Analog Needle Meters
Electronics
Electronics
Peak Limiter
Cassette Exterior
Exterior
Silver Finish Orientation Center Front Loading
Compact Cassette
General
Stereo
Head Configuration
Head Configuration
2 Head Desiǥn 4 Track / 2 Channel
Indicators
Indicators
Cassette Back Lighting
Noise Resuction
Noise Reduction
Dolby-B Noise Reduction MPX Filter High-Com Noise Reduction
Controls
Operation
Cue / Review Memory Stop Mechanical Transport Control
Power
Power Requirements
Alternating Current
Preamplifier
Preamplifier
Individual Input Level Controls
Tape Speed
Speed
1⅞ ips - 4.76 cm/s
Tape
Tape
Manual Tape Type Selection Ferro-Chrome Tape Capabilıty Automatic CrO2 Tape Selection Normal Tape Capabilıty Automatic Normal Tape Selection Chrome Tape Capabilıty Metal Tape Capabilıty
Transport
Transport
2x Motor Mechanism Mechanical Tape Loading Auto Stop Sìngle Capsŧan Transport Belt Drive (Capsŧan)

Similar to Telefunken TC 650M from the period 1980 - 1981