Aktualności – Strona 16

wrz 21, 2024

Pioneer CT-737

General

Manufacturer: Pioneer
Model: CT-737
Type: Cassette Tape Deck
Years of manufacture: 1988
Made in: Japan
Color: silver, black
Remote control: no
Power consumption: 22 W
Dimensions: 420 x 133.5 x 372 mm (W/H/D)
Weight: 7.3 kg
Original price approx.: 880 DM

Connections

Number of inputs:
- Line 2x (Cinch)
Number of outputs:
- Line 2x (Cinch)
- Headphones: 6.35mm jack

Technical Data

Sound heads: 3 – (combined hard permalloy recording/playback head), 1 x erasing head (ferrite)
Motors: 3 – DC servo motors 3x = 1x sound shaft (capstan), 1x reel drive, 1x cassette compartment
Tape speed: 4,75cm / s
Synchronous fluctuation: 0,028 % (WRMS)
Rewind time: 80 sec. (60 min. cassette)
Erasing principle: HF erasing
Tape types: type I = standard, type II (CrO2) = HIGH, type IV = metal (pure iron).
Frequency response:
- Type I: 20 – 20000 Hz
- Type II: 20 – 20000 Hz Type IV: 20 – 21000 Hz

Noise reduction:
- Dolby B = 10 dB improvement at 5kHz.
- Dolby C = 19 dB improvement at 5kHz
Automatic Tape Tightening: yes
Title search: yes
Dolby: B/C and HX-Pro
MPX Filter: yes, switchable
Monitor / Source: yes

Special Features

Resonance-free design
Rear band control
Accubia’s fine-tuning control
Adjustable volume for headphones
Motorized cartridge opening and closing
Two-color peak meter with 2 x 15 segments with „peak hold” memory function
Automatic tape type setting
Record-empty button (5 sec. mute recording)
Timer start function for recording & playback
Title search: up to 15 titles forward and backward
Tape counter with three display modes (4-digit)
Zero-reverse function / automatic playback start
3 fuses (fuse) = 1x 1.6A, 2x 800mA
gold plated RCA connectors

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wrz 21, 2024

HMK-70 Sony Music Center

Specifications

Type: Music Centre

Formats: turntable, tape, tuner

Loudspeakers: 3-way

Power output: 20 watts per channel into 8Ω

Frequency response: 40Hz to 20kHz

Total harmonic distortion: 0.9%

Dimensions: 626 x 191 x 430mm

Weight: 19.4kg

Year: 1975

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wrz 10, 2024

Akai GX-77

Przegląd i rewitalizacja

General

Manufacturer: Akai
Model: GX-77
Years of manufacture: 1982 – 1984
Made in: Japan
Color: silver or gray anthracite or black anodized
Remote control: yes (cable)
Power consumption:
Dimensions: 440 x 244 x 227 mm (W x H x D).
Weight: approx. 17 kg
New price approx.: 1.600 DM (1982), 1984 at Radio Diehl Frankfurt/M 1.498,– DM

Connections

Number of outputs: 3
- DIN (0,2 V / > 20 kOhm)
- Line (0.775 V / > 20 kOhm)
- Headphones (8 Ohm)

Number of inputs: 3
- Microphone (600 Ohm)
- Line (70 mV / 47 kOhm)
- DIN (2 mV / 10 kOhm)

Technical Data

Max.coil diameter: 18 cm
Drive: 3 motors
Heads: 6 clay heads
Tracks: 4
Tape speeds: 9.5 and 19 cm/s
Synchronous speed fluctuations:
- at 9.5 cm/s: ±0.10% (DIN 45500), ±0.04% (WRMS)
- at 19 cm/s: ±0.07% (DIN 45500), ±0.03% (WRMS)
Pitch fluctuations:
Overall frequency response:
- at 9.5 cm/s: 25 – 25,000 Hz (±3 dB, -20 VU), 25 – 15,000 Hz (±3 dB, 0 VU).
- at 19 cm/s : 25 – 33,000 Hz (±3 dB, -20 VU), 25 – 26,000 Hz (±3 dB, 0 VU)
Signal-to-noise ratio: > 63 dB (19 cm/s).
Distortion factor:
- at 19 cm/s: < 0.5%.
Equalization: NAB
Crosstalk attenuation:
Cancellation attenuation:
Premagnetization and cancellation frequency: 100 kHz

Special features

digital counter (also suitable for continuous operation by means of a power supply unit available as an accessory at the time; display does not go to 0000 after the GX-77 is switched off).
reverse operation

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wrz 8, 2024

Akai GXC-730A – pełny serwis

General

Manufacturer: Akai
Model: GXC-730 D
Type: Auto-Reverse Cassette Tape Deck
Years of manufacture: 1976 – 1978
Made in: Japan
Color: Silver, Cabinet real wood
Remote control:
Power consumption: 40 W
Dimensions: 440 x 175 x 302 mm (WxHxD)
Weight: 12 kg
Original price approx.: 1’100 DM

Connections

Number of inputs:
- Line In 1, 2: 70 mV, 100 kOhm
- Microphone 1, 2: 0.3 mV, 600 Ohm – 10 kOhm
Number of outputs:
- Line Out 1, 2: 775 mV, 20 kOhm
- Headphones: 50 mV, 8 Ohm

Technical Data:

track system: 4 track, 2 channel stereo
Sound heads:
- 1x GX- recording / playback head for forward and reverse direction.
- 2x erase heads

Motor: 1x, 4-pole hysteresis synchronous motor
Speed: 4,75 cm/ s
Synchronous speed: 0.08 % WRMS (NAB)
Band types: LN, CrO2, FeCr
Frequency response ± 3 dB:
- Type I: 35 – 14,000 Hz
- Type II: 35 – 16,000 Hz
- Type III: 35 – 17,000 Hz

Distortion factor: 1.5 % (1 kHz, level 0)
Signal-to-noise ratio:
- Better than 50 dB (Dolby off).
- Dolby on: Improvement up to 10 dB above 5,000 Hz.
Rewind time (C 60): 70 s
Cancellation attenuation: 70 dB
Premagnetization: 100 kHz
Auto reverse: yes, switchable
Title search: no
Dolby NR: yes

Special features:

56 transistors, 121 diodes, 2 IC,
Autoreverse with tape-direction indicator
Solid, heavy construction

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wrz 7, 2024

Teac W-420C

Main principle
Audio-Amplification

Details
Cassette-Recorder or -Player

Power type and voltage
Alternating Current supply (AC) / 230 Volt

Loudspeaker
– For headphones or amp.

Material
Metal case

from Radiomuseum.org
Model: Stereo Double Cassette Deck W-420C – TEAC; Tokyo

Shape
Tablemodel with Push Buttons.

Dimensions (WHD)
460 x 115 x 200 mm / 18.1 x 4.5 x 7.9 inch

Notes
– Stereo Double Cassette- High Speed Dubbing – Continuous Playback System

Net weight (2.2 lb = 1 kg)
3 kg / 6 lb 9.7 oz (6.608 lb)

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wrz 7, 2024

Sony TC-377

General

Manufacturer: Sony
Model: TC-377 (designation in Japan for the identically constructed Sony TC-6360 A)
Type: Reel-to-reel tape recorder
Years of manufacture: 1972 – 1976
Made in: Japan
Color: silver / black, housing wood
Remote control:
Power consumption: 48 W
Dimensions (WxHxD): 418 x 392 x 210 mm
Weight: 11.5 kg
Original price approx.: 950 DM

Connections

Number of inputs:
- Line-In: 60 mV / 100 kOhm
- Microphone: 0.2 mV
Number of outputs:
- Line-out: 775 mV / 100 kOhm
- Headphone: 8 Ohm

Technical Data

Max. coil diameter: 18 cm
Drive: 1 motor
Heads: 3
Tracks: 4
Tape speeds: 4.75 cm/s, 9.5 cm/s, 19 cm/s
Slip:
Speed variations:
- 4.75 cm/s: 0.17 %
- 9,5 cm/s: 0,12 %
- 19 cm/s: 0.09

Overall frequency response with Sony SLH tape:
- 4.75 cm/s: 30 – 20’000 Hz
- 9.5 cm/s: 30 – 25’000 Hz
- 19 cm/s: 20 – 30’000 Hz

Signal-to-noise ratio: 55 dB (SLH band)
Distortion factor: 1.2 % THD
Equalization: NAB
Crosstalk attenuation:
Cancellation attenuation:
Premagnetization and cancellation frequency: 160 kHz

Special Features

Housing horizontally / vertically interchangeable

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wrz 7, 2024

Technics RS-BX747 i Technics RS-B565

RS-BX747

Manufacturer: Technics
Model: RS-BX 747
Type: Cassette Tape Deck
Years of manufacture: 1993 – 1994
Made in: Japan
Color: Technics-anthracite
Power consumption: 21 W
Dimensions (WxHxD): 430 x 125 x 293 mm
Weight: 4.6 kg
Original price approx.: 700 DM

Connections

Inputs:
- Line In (REC) 100 mV/47 kOhm
Outputs:
- Line Out (PLAY) 500 mV/500 ohms.
- Headphones 190 mV/8 Ohm (load impedance 8-600 Ohm)

Technical Data

Audio head assembly: 3
Motors: 3
Synchronization fluctuations: 0,05%
Frequency response :
- Normal: 20-18,000 Hz
- Chrome: 20-19.000 Hz
- Metal: 20-20.000 Hz

External voltage spacing:
- without Dolby 57dB (A-curve).
- Dolby B 66dB (A-curve)
- Dolby C 74dB (A-curve)

Special Features

Timer (recording and playback)
Automatic metering (ATC with 3 bias programs)
Dolby B and C
Dolby HX-PRO
Adjustable headphone output
Resonance-damping cabinet base (THCB = Technics Hybrid Construction Base)
MPX filter (switchable)
Fast forward function
Direct drive (crystal controlled)
TPS title search in two speeds
2 counter modes (tape counter / play time counter)
Memory Repeat/Stop (repeat play between two tape sections/rewind the tape to a desired tape position)
Automatic recording mute (approx. 4 sec.)

RS-B565

Manufacturer: Technics
Model: RS-B565
Type: Single
Years of manufacture: 1990-1991
Made in: Japan
Color:
Remote control:
Power consumption: 21 W
Dimensions: 430 x 125 x 290 mm
Weight: 4,4 kg
Original price approx.: 600 DM

Connections

Number of inputs: 2
- Line in
- Mic
Number of outputs: 2
- Line OUT
- Headphones

Specifications

Tone heads:
- Tone head made of hard permalloy
- Double-gap ferrite head
Motors:
- Direct drive DC motor
- DC motor
Synchronous speed variation:0.05% (WRMS)
Band types:all
Frequency response:
- FE band: 20 Hz ~ 16 kHz (DIN).
- CrO2: 20 Hz ~ 17 kHz (DIN)
- Metal: 20 Hz ~ 18 kHz (DIN)

Distortion ratio:
Signal-to-noise ratio:(signal level = full scale; CrO2 band).
- with Dolby C noise reduction: 74 dB (CCIR)
- with Dolby B noise reduction: 66 dB (CCIR)
- without noise reduction: 56 dB (A-weighted)

Auto Reverse:
Title search: yes
Dolby:Dolby B and Dolby C
MPX Filter:
Fader:
Pitch control:
CD Synchro Recording:

Special Features

Digital servo direct drive motor
Linear Magne-Field-Class-AA-System
Dolby B,C,HX-Pro
Logic control with 2 motors
MPX Filter
Bias Adjust
Electronic tape counter
Improved sound quality to be achieved by high quality PXS capacitors
Microphone input

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wrz 7, 2024

Sansui SC-3000

General

Manufacturer: Sansui
Model: SC-3000 (version Sansui SC-3003 in black)
Type: Cassette deck
Years of manufacture: 1975-1977
Made in: Japan
Colour: silver
Remote control: –
Power consumption:
Dimensions: 441 mm × 158 mm × 290 mm
Weight: 8 kg
Original price approx.: 1.100 DM

Connections

Number of inputs:
- Line In: 70 mV / 100 kOhm
- DIN In: 0.12 mV
- Microphone: 0,5 mV / 600-10.000 Ohm
Number of outputs:
- Line Out adjustable: 350 mV, 3 kOhm
- DIN Out adjustable: 350 mV, 3 kOhm

Headphones (6.3 mm jack): 0.3 mW / 8 Ohm – 1 kOhm

Technical data:

Audio heads: 2
- 1 × Sen-Alloy for recording and playback
- 1 × double-slit ferrite head for erasing
Motor: 1
Tape speed: 4.75 cm/s
Synchronous speed: 0.09 % WRMS
Tape types:
Frequency Response:
- Normal I = 40-15,000 Hz
- Chrome II = 30-16,000 Hz
Distortion factor: 1.3
Signal-to-noise ratio: under full load
- without Dolby: 50 dB
- with Dolby B: +5 dB at 1 kHz, +10 dB above 5 kHz
Crosstalk attenuation: 65 dB at 1 kHz

Special features:

2 × microphone
Dolby system
LED input selection display
Pre-magnetization and equalization selector switch
Output level control
Timer recording, playback

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wrz 7, 2024

Akai GX-75

General

Manufacturer: Akai
Model: GX-75
Type: Cassette Tape Deck
Years of manufacture: 1988 – 1990
Made in: Japan
Color: Black
Remote control: optional (RC-G95)
Dimensions: 425 x 154 x 350 mm (WxHxD)
Weight: 9.2 kg
Original price approx.: DM 999,- (€ 500,-)

Connections

Number of inputs:
- LINE: 70 mV / 47 kOhm

CD/DAT DIRECT IN: 240 mV / 47 kOhm

Number of outputs:
- LINE: 388 mV / 150 kOhm
- Headphones: 1.3 mV (8 Ohm)

Specifications

Tone heads:
- 1x LC-OFC Super GX sound head for playback.
- 1x LC-OFC Super GX sound head for recording
- 1x erase head
motors:
- 1x FG Servo DD electronically speed controlled DC motor for drive shaft drive.
- 1x DC motor for coil drive
- 1x DC motor for cam drive and for belt ejection/loading
Synchronization fluctuations: 0.025% WRMS, 0.04% (DIN)
Belt types: Normal, CrO₂ and Metal.
Frequency response:
- Normal: 20 to 19,000 Hz ±3dB.
- CrO₂: 20 to 20,000 Hz ±3dB
- Metal: 20 to 21,000 Hz ±3dB

Distortion factor: < 0.6 % (for metal)
Signal-to-noise ratio:
- 59 dB (measured over tape at recording peak level).
- Dolby™ NR Type B on: improved by 5 dB at 1 kHz, 10 dB above 5 kHz.
- Dolby™ NR Type C on: improved by 15 dB at 500 Hz, 20 dB at 1 kHz to 10 kHz.
Auto Reverse: no
Title search: 16 titles with IPSS function.
Dolby™: B, C and HX PRO.
MPX filter: yes
Fader: no
Pitch control:
CD synchro recording: no

Special Features

3-tone head system, Super GX tone heads incorporating LC-OFC (linear crystal/oxygen-free copper).
Microprocessor-controlled turntable with „Power-Eject” and extremely quiet mechanics
Closed loop double capstan shaft system by direct drive
Stable tape transport mechanism with wide tape guides
Automatic monitoring system
Automatic belt tensioning system
Partial unloading system
Useful record cancel and mute system * Repeat playback function of a section
Repeat playback function of a section between 2 points
Large concentrated FL display with indicator on/off function to reduce unwanted noise
Peak level meter with peak hold system
Recording calibration system with premagnetization and level controls
Separate block construction
Highly stable design
Remote controlable with optional remote control (RC-G95)
Timer start function
Easy-to-operate large-diameter recording level control
Digital time/tape counter
Counter memory stop system
Automatic playback system
16-title IPSS system
Recording level indication system
Independent switch for multiplex filter
Switch and input jacks for CD/DAT Direct
Headphone jack and level control
Automatic Tape Selection System