Aktualności

paź 20, 2024

Koncert M3401SD

SPECIFICATIONS:

1. Tape speeds:
   • 19.05 cm/s
   • 9.53 cm/s
   • 4.76 cm/s
   A few units—after modification at ZRK upon request—received a speed of 38.1 cm/s (so-called „small studio” speed).
2. Speed deviation: ±0.5%
3. Tape speed fluctuation: ±0.06%
4. Frequency response:
   • 30 – 22,000 Hz (19.05 cm/s)
   • 30 – 18,000 Hz (9.53 cm/s)
   • 30 – 13,000 Hz (4.76 cm/s)
5. Signal-to-noise ratio: 64 dB (four-track), >80 dB (two-track)
6. Stereo channel separation: 45 dB
7. Erasure efficiency: 70 dB
8. Maximum reel diameter: 26.5 cm
9. Inputs:
   • Microphone:
   • Radio:
   • Universal: (2.5 – 250) mV, 47 kOhm
   • Magnetic turntable: (0.1 – 5) V, 1 MOhm
   • Tape recorder/ceramic turntable: (0.1 – 10) mV/kOhm, 20 kOhm
10. Outputs:

• Radio: 0.7 V, 10 kOhm
• Monitor: 0.7 V, 5 kOhm
• Headphones: 50 mW, 2 x 400 Ohm

11. Operating positions: horizontal, vertical, horizontal-tilted, vertical-tilted
12. Power supply: 110/127/220V, 50Hz
13. Power consumption: 90 VA
14. Dimensions: 464 x 461 x 173 mm
15. Weight: over 20 kg

paź 20, 2024

Akai GX-630D

General

• Manufacturer: Akai
• Model: GX-630 DB
• Years of manufacture: 1976 – 1978
• Made in: Japan
• Color: silver / walnut cabinet
• Remote control only as accessories: yes (cable remote control RC-17 or RC-18)
• Power consumption: approx. 100 W
• Dimensions: 440 x 465 x 240 mm (WxHxD)
• Weight: 19,5 kg
• Original price approx.: 1’598 DM (1976)

Connections

• Number of outputs: 3
  • DIN (0.5 V)
  • Line (0.775 V)
  • Headphones (30 mV, 8 Ohm)
• Number of inputs: 2
  • Microphone (3 mV / 27 kOhm)
  • Radio (70 mV / 150 kOhm)
  • Line (70 mV / 150 kOhm)
  • Reserve (70 mV / 150 kOhm)

Technical Data

• track position: 4-track stereo/mono
• max. reel diameter: 26,5 cm
• drive:
  • 1 AC servo motor (tape drive).
  • 2 eddy current motors (reel drive).
• Heads:
  • 1 GX pick-up head
  • 1 GX playback head
  • 1 erase head
• Tape speeds: 9.5 and 19 cm/s
• Synchronisation fluctuations:
  • at 9.5 cm/s: 0.05%
  • at 19 cm/s: 0.03% * overall frequency response
• Overall frequency response:
  • at 9.5 cm/s: 20 – 20,000 Hz
  • at 19 cm/s : 16 – 25,000 Hz

Distortion factor: at 19 cm/s: < 0,7 (333 Hz)

• Geräuschspannungsabstand:
  • >55 dB without Dolby
  • 64 dB with Dolby crosstalk attenuation:
    • opposite direction double track recording, mono: > 55 dB (1 kHz)
    • opposite stereo mode: > 45 dB (1 kHz)

• erasure attenuation: at 19 cm/sec: > 70 dB
• Premagnetization and extinction frequency: 100 kHz ± 5%
• Rewind time: 120 sec for 1100 m

Special Features

• Dolby-B system, GX heads

paź 20, 2024

Akai X-201

General

• Manufacturer: Akai
• Model: X-201 D
• Years of manufacture: 1972 – 1976
• Made in: Japan
• Color: silver/black, case wood walnut
• Type: Autoreverse coil tape
• Remote control:
• Power Consumption:
• Dimensions (WxHxD): 358 x 358 x 227 mm.
• Weight: 17 kg
• Original price approx.: 1’298 DM (1973)

Connections

• Number of inputs: 3
  • Microphone: 0.5 mV, 5 kOhm

Line: 60mV, 180 kOhm

• • DIN:
    • Low: 5mV
    • High: 50mV
• Number of outputs: 3
  • Line: 1.23 V
  • Din: 400 mV
  • Headphone: 30mV, 8 Ohm

Technical Data

• Coil diameter: 18 cm
• Drive: 3 motors

1x Hysteresis-Synchron Capstan-Motor

• • 2x winding motors, external rotor
• Heads: 3
• Tracks: 4
• Tape speeds:
  • 4.75 cm/s
  • 9.5 cm/s
  • 19 cm/s
• Synchronization fluctuations:
  • < 0.20% RMS (4.75 cm/s)
  • < 0.12% RMS (9.5 cm/s)
  • < 0.08% RMS (19 cm/s)
• Pitch fluctuations:
• Overall frequency response:
  • 30Hz-9kHz ±3 dB (4.75 cm/s).
  • 30Hz-19kHz ±3 dB (9.5 cm/s)
  • 30Hz-26kHz ±3 dB (19 cm/s)
• Signal-to-noise ratio: > 58 dB
• Signal-to-noise ratio:
• Total harmonic distortion: < 2% (1 kHz)
• Entzerrung: nach NARTB
• Übersprechdämpfung:
  • Mono: >65 dB
  • Stereo: > 45 dB

• Cancellation attenuation: < 70 dB
• Premagnetization and erasure frequency: 100 kHz
• Rewind time: 75 seconds for 370m band

Special Features

• Crossfield audio head system: With the crossfield audio head system, the so-called bias magnetization of the audio tape is not – as is generally the case – performed by the recording/playback head, but by a separate audio head (bias head) located opposite the aforementioned recording/playback head. This pickup head arrangement allows signal modulation over the entire audio frequency spectrum without any interference from bias magnetization as is the case with other pickup head systems.
• Autoreverse
• Magnetic brakes
• Switchable equalization
• Auto stop and auto power off
• Vertical and horizontal operation possible
• Tape type selector switch
• Autoreverse with continuous operation

paź 20, 2024

Pioneer CT-600M

Z rynku japońskiego, naprawa mechaniki, torów sygnałowego, zasilania, equalizacji, pełna regulacja i kalibracja

General

• Manufacturer: Pioneer
• Model: CT-F 600
• Type: Single
• Year built: 1978
• Made in: Japan
• Color:
• Remote control:
• Power consumption:
• Dimensions: 420 x 142 x 287 mm
• Weight: 5 kg
• New price approx:

Technical data

• sound heads: 2
• motors: 1
• Synchronization fluctuations: 0,05%
• Tape types:
• Frequency response:
  • Normal: 40 – 13000 Hz
  • Chrome: 40 – 15000 Hz

• Distortion factor: 0.17
• Signal to noise ratio: 58 db
• Auto Reverse:
• Title search:
• Dolby:
• MPX Filter:
• Fader:
• Pitch control:
• CD Synchro Recording