1995 Sony Digital Micro Recorder NT-2

1995 Sony Digital Micro Recorder NT-2

Analog Audio, Digital Micro Tape, Digitális Audio, Digitális rögzítők, Gyártók

  • Sony NT-2 is an improved version of the Sony Digital Micro Recorder NT-1.Both models are designated by “Scoopman” and use the same type of cassette tape, developed by Sony. The NT cassette tape is the world smallest tape cassette.Both recorders use the Sony NT Non Tracking system. This system uses a miniature rotary head drum doing helical scanning of the tape in a way similar to that of used in video tape recorders. The rotary heads rotate at double speed and the reading of tracks provides one complete track and two track segments. The track synchronization is obtained by a special chip that detects the signals of the valid track, rejecting the other segments, avoiding the complication of the mechanical synchronization of tracks.Specifications:· Recording Format: NT format
    · Tape: Digital micro cassette tape (NT cassette tape)
    · Recording system: Helical scan 2 heads, digital recording
    · Recording heads: 4 heads
    · Recording time: 60 minutes (with the supplied NTC-60)
    · Tape speed: 6.35 mm/s
    · Drum rotation: 3000 rpm
    · Error correction: Cross-interleaving code
    · Track pitch: 9.8 µm
    · Sampling frequency: 32 kHz
    · Modulation system: LDM-2
    · Number of channels: 2-channel, stereo
    · Quantization: 12 bit non-linear (equivalent to 17 bit)
    · Frequency response: 10 Hz to 15,000 Hz (+ 1, -3dB)
    · Signal-to-noise ratio: More than 80 dB (1 kHz, IHF-A, 20 kHz, LPF, LINE IN)
    · Dynamic range: More than 80 dB
    · Total harmonic distortion: Less than 0.08%
    · Wow and flutter: Below measurable limit (less than 0.001% W.Peak)
    · Power requirements: DC 1.5 V; Size AA (LR6) battery or AC power adaptor
    · Battery life: Approx. 5 hours (consecutive recording), Approx. 3 hours (consecutive playback) (with Sony alkaline battery LR6)
    · Lithium battery life: Approx. 1 year (for clock and calendar)
    · Power consumption: Approx. 300 mW
    · Mass: 155 g; 210 g (including the headphones, Sony battery LR6, and one NT cassette tape NTC-60)

Sony NT-2 brochure

Sony NT-2 Operating Instructions

1975 Sony Stereo Cassette-Corder TC-153SD

1975 Sony Stereo Cassette-Corder TC-153SD

Analog Audio, Compact Cassette, Gyártók, Magnó

Sony TC-153SD Service Manual

The first „Densuke” recorder for cassettes, complete with a shoulder strap. Aimed squarely at the growing number of live-recording enthusiasts, it continued in the acclaimed tradition of Densuke recorders. The TC-2850SD offered exceptional recording fidelity to go, in a brown and silver metal case. Controls were designed to more professional standards, and this is apparent in the buttons and level meters. Operating the switches felt like toggling high-end levers. What made this recorder a hit was its combination of durable construction and great usability.