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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Showing posts with label Reel to Reel. Show all posts
Showing posts with label Reel to Reel. Show all posts

Sony TC756-2 reel-to-reel

The Sony TC756 set new records for performance of home tape decks.

Hirsch-Houck Laboratories further noted. "The dynamic range, distortion, flutter and frequency response performance are so far beyond the limitations of conventional program material that its virtues can hardly be appreciated".

 

The Sony TC756-2 features a closed loop dual capstan tape drive system that reduces wow and flutter to a minimum of 0,03% , logic controlled transport functions that permit the feather-touch control buttons to be operated in any sequence, at any time without spilling or damaging tape: an AC servo control capstan motor and an eight-pole induction motor for each of the two reels; a record equalization selector switch for maximum record and playback characteristics with either normal or special tapes; microphone attenuators that eliminate distortion caused by overdriving the microphone pre-amplifier stage when using sensitive condenser mics; tape/source monitoring switches that allow instantaneous comparison of program source to the actual recording; a mechanical memory capability that allows the machine to turn itself on and off automatically for unattended recording; and a full, two-year guarantee.

In addition, the TC756-2 offers 15 and 7-1/2 ips tape speeds; Ferrite & Ferrite 2-track/2-channel stereo three-head configuration; and symphase recording that allows you to record FM matrix or SQ** 4-channel sources for playback through a decoder-equipped 4-channel amplifier with virtually non-existent phase differences between channels.

The Sony TC756-2 is representative of the prestigious Sony 700 Series - the five best three-motor 10-1/2" reel home tape decks that Sony has ever engineered.

 


Specifications

Track System:  2-track 2-channel stereo (TC756-2); 4-track 2-channel stereo (TC756)

Reels:  270 mm (10-1/2 inches) or smaller

Tape Speed:  19 cm/s (7-1/2 ips), 38 cm/s (15 ips)

Recording Time:  with 1,100 m (3360 ft) tape of 270 mm (10-1/2 inch) reel

3-hours stereo recording at 19 cm/s (7-1/2 ips) :  TC756

1,5 hours stereo recording at 19 cm/s (7-1/2 ips) :  TC756-2

Heads:

TC576 Model

Record :  RF140-2902

Playback :  PF142-4202

TC756-2 Model

Record :  RF142-2202A

Playback :  PF142-2202A

Motors:

Capstan :  IC-624G (AC servo controlled)

Reel :  IC-638R (2)

Frequency Response (with Sony SLH tape):

20 - 35,000 Hz at 38 cm/s (15 ips)

30 - 30,000 Hz ±3 dB at 38 cm/s (15 ips)

20 - 30,000 Hz at 19 cm/s (7-1/2 ips)

30 - 25,000 Hz ±3 dB at 19 cm/s (7-1/2 ips)

Signal-to-Noise Ratio

TC756 Model

Sony SLH Tape :  56 dB

Standard Tape :  53 dB

TC756-2 Model

Sony SLH Tape :  59 dB

Standard Tape :  56 dB

Wow and Flutter

0,04% (RMS) weighted at 38 cm/s (15 ips)

0,06% (RMS) weighted at 19 cm/s (7-1/2 ips)

Overall Distortion:  1,2%

Record Bias Frequency:  approx 160 kHz

Input Sensitivity/Impedance

Mic :  0,19 mV (-72 dB) / low

Line In :  60 mV (-22 dB) / 100 k Ω

Output Level/Impedance

Line Out :  0,44 V (-5 dB) with 100 k Ω load  / 100 k Ω

Headphone :  8 Ω  Impedance

Rec/Power Bandwidth Connector (AEP, UK)

Input Impedance :  3,9 k Ω

Output Impedance :  8,2 k Ω

Semiconductors:  1 ICs; 2 FETs; 58 Transistors; 46 Diodes

AC Outlet (USA):  Unswitched, 300 W maximum

Power Requirements:  AC 120 V, 60 Hz (USA, Canada); AC 110, 127, 220 0r 240 V 50/60 Hz (AEP, UK)

Power Consumption:  100 W (USA); 110 W (AEP, UK, Canada)

Dimensions (W x H x D):  435 x 451 x 221 mm (17-1/8" x 17-3/4" x 8-3/4")

Weight:  24 kg (52 lb 14 oz)


 

Akai M-10 tape deck

This Three Motors Auto-Reverse Solid State Stereo Tape Recorder offers you perfect stereo hi-fi tape recording and automatic reverse playback with concert hall sound.

 

Outstanding Features

4-track stereo/monaural recording and playback

3 speed  (7-1/2; 3-3/4; and 1-7/8 ips)

3 heads - Erase, Playback/Record and bias heads - Crossfield Head System

3 motors -  A hysteresis synchronous 3-speed motor for capstan drive; Two 6-pole eddy current out rotor motors for supply and take-up reel drive.

Wide Cross-Field Frequency Response

40 W music power solid state amplifier with two integrated circuits

Sensing tape continuous reverse (Auto reverse)

Manual reverse

Shield type head for high Signal-to-Noise Ratio

Sound on sound

Automatic stop/shut off; Instant stop control with start button

Automatic pinch wheel release, Automatic lever release

Two lever system ensures dependable and durable operation

Track selector for simple operation between stereo and monaural

Tape lifter in fast forward and rewind operation

100 kHz biased for FM multiplex recording

Tape speed equalizer

Treble and Bass controls

DIN jack with selector switch for High Low input

Two stereo headphone jacks

4-digit index counter with reset button,

Two large VU meters

Vertical or horizontal operation

Fine oil finished wooden cabinet or vinyl leather wooden cabinet

Universal voltage selector ( from 100 V to 240 V, 50/60 Hz)

 

Cross-Field Head

On conventional recorders the signal and bias are applied to the same recording head. Therefore the frequencies recorded, especially the high frequency component of the recorded signal tend to be attenuated or erased by the effect of the bias field.

On the exclusive Akai Cross0Field Head which was developed by Akai for practical use the signal and bias heads are mounted in opposition with their centres slightly off. As the recorded signal is entirely unaffected by the prevailing effect of the entire frequency spectrum with maximum fidelity.

 

Sensing Tape Continuous Reverse

Automatic reverse with metallic sensing tape is used for playback only. Reverse operation will occur when metalic sensing tape on prerecorded tape makes contact with the Sensing PIN. Put metallic sensing tape as the desired reverse point on shiny side of the prerecorded tape and another metallic sensing tape at the desired reverse point  on dull side of the prerecorded tape. So, the M-10 will give continuous playback in both directions between two points

 


Specifications

Tape Speed: 7-1/2; 3-3/4; and 1-7/8 ips

Wow and Flutter

At 7-1/2 ips :  less than 0,08% rms

At 3-3/4 ips :  less than 0,12% rms

At 1-7/8 ips :  less than 0,20% rms

Frequency Response

At 7-1/2 ips :  30 - 26,000 Hz

At 3-3/4 ips :  30 - 19,000 Hz

At 1-7/8 ips :  30 - 9,000 Hz

Distortion: within 2% 1,000 Hz 0VU

Signal-to-Noise Ratio :  better than 50 dB

Input Level

Mic :  better than 0,5 mV

Line :  better than 50 mV

DIN :  better than 5 mV (Low); 50 mV (high)

Power Output: 

15 W maximum per each channel at Undistorted Power, total 30 W

20 W maximum per each channel at Music Power, total 40 W

Equalization:  Correct equalization for playback of tapes recorded to the NAB curve

Recording Bias Frequency:  100 kHz

Recording Level Indicator:  2 VU meters

Recording System:  4-track stereo / monarual, Cross-Field bias system

Fast Forward and Rewind Time:  75 seconds using 1,200 foot tape at 50 Hz  (60 seconds at 60 Hz)

Recording Capacity: 

8 hours monaural recording at 1-7/8 ips (1,200 foot tape)

4 hours stereo recording a 1-7/8 ips

Max. Reel Size:  7" reel

Head: 3 heads - Erase, Rec/Pb, Bias

Motor:  3 motors- hysteresis synchronous 3-speed motor ; Two 6-pole eddy current out rotor motors

Speaker:  2 - 4" x 6" speakers

Semiconductors:  22 Transistors; 2 ICs

Power Requirements:  AC 100 to 240 V 50/60 Hz

Power Consumption:  165 W

Dimensions:  474 x 350 x 242 mm (18-3/4" x 13-3/4" x 9-1/2")

Weight:  22 kg (48,4 lbs)


 

Akai X-330D reel-to reel

Stereo Tape Deck with Multi-Purpose Program Minder

The X-330D enables to enjoy different music for 24 hours, in addition to selection and repeating your favourite tune forever.

 


All features:

Program Minder - Automatic Continuous Reverse

Sensing tape continuous reverse. Manual reverse

Cross-field head

3 motors -  A hysteresis synchronous 3-speed motor for capstan drive; Two 6-pole eddy current out rotor motors for supply and take-up reel drive.

3-speed  (7-1/2; 3-3/4; and 1-7/8 ips)

Magnetic brake with tach generator (stoppage occurs within 3seconds from F.F/RWD condition (10-1/2"  reel)

Up to 10-1/2 reel acceptable and back tension control

4-track stereo/monaural recording/playback. For playback the X-330D requires an external power amplifier and speakers

4 heads - Erase, Playback, Record and bias heads

All silicon transistorized pre-amplifier

12 hours continuous hi-fi stereo recording capacity at 1-7/8 ips (7,200 foot tape)

Shield type head for high Signal-to-Noise Ratio

Tape lifter in fast forward and rewind operation

Track selector for simple selection between stereo and monaural

Automatic stop/shut off, Automatic pinch wheel release

Sound on sound, sound with sound, sound over sound

100 kHz biased for FM multiplex recording

Remote controllable, AC outlet with automatic shut off switch

Standard/ low noise tape selector

Tape cleaner, 4-digit index counter with reset button, VU meters

Fine oil finished wooden cabinet

Universal voltage selector ( from 100 V to 240 V, 50/60 Hz)


Teac 3300 tape deck


The new Semi Pro Tape Deck

The 3300 is available in three basic configurations for maximum versatility

Model 3300-10

Standard 4-track stereo record and playback functions. 3-3/4 and 7-1/2 ips. For maximum tape economy and conventional home use.

Model 3300-11

Half track record and playback with 7-1/2 and 15 ips operation. Ultimate quality fidelity, form master tapes and professional use.

Model 3300-12

Half track record and playback with 3-3/4 and 7-1/2 ips operation. For original recording of master tapes for dubbing.

 


Specifications

Heads:

3300-10 :  three, 4 track 2 channel, stereo or mono erase, record and playback

3300-11 :  three, 2 track 2 channel, stereo or mono erase, record and playback

3300-12 :  three, 2 track 2 channel, stereo or mono erase, record and playback

Reel Size:  10-1/2" and 7"

Tape Speed
3300-10 :  7-1/2 and 3-3/4 ips (±0,5%)

3300-11 :  15 and 7-1/2 ips (±0,5%)

3300-12 :  7-1/2 and 3-3/4 ips (±0,5%)

Motors:

1 dual speed hysteresis synchronous capstan motor

2 eddy current induction reel motors

Wow and Flutter

3300-10 :  0,06% at 7-1/2 ips; 0,09% at 3-3/4 ips

3300-11 :  0,04% at 15 ips; 0,06% at 7-1/2 ips

3300-12 :  0,06% at 7-1/2 ips; 0,09% at 3-3/4 ips

Frequency Response:

3310-10 :  25 - 26,000 Hz (30-22,000 Hz ±3 dB) at 15 ips; 25-24,000 Hz (30-13,000 Hz ±3 dB) at 3-3/4 ips

3310-11 :  25 - 24,000 Hz (30-20,000 Hz ±3 dB) at 7-1/2 ips; 25-16,000 Hz (30-20,000 Hz ±3 dB) at 7-1/2 ips

3310-10 :  25 - 24,000 Hz (30-20,000 Hz ±3 dB) at 7-1/2 ips; 25-16,000 Hz (30-13,000 Hz ±3 dB) at 3-3/4 ips

Signal-to-Noise Ratio

3300-10 :  58 dB

3300-11 :  60 dB

3300-12 :  60 dB

Total Harmonic Distortion :  1% at 1,000 Hz normal operating level

Crosstalk:  60 dB at 1,000 Hz

Stereo Channel Separation:  50 dB at 1,000 Hz

Fast winding Time:  90 sec. For 1,200 feet tape

Inputs

Microphine :  0,25 mV / -72 dB (600 - 10,000 Ω )

Line :  0,1 V, 50,000 ohms or more

Outputs:

Line :  0,3 V for load impedance of 10,000 Ω  or more

Headphones :  8 Ω

Power Requirements:  117 V AC, 60 Hz

Power Consumption:  160 W

Dimensions (H x W x D):  15-3/8" x 15-3/4" x 9-3/4"

Weight:  20 kg ( 44,5 lbs)

Akai 4000D tape deck

Three Head Stereo Tape Deck

A superb stereo tape deck enabling stereo fans to produce the ultimate in high fidelity recordings

High quality three head system embodying the latest techniques, featuring an exclusive one micron gap recording and playback heads plus erase head

All silicon transistorized pre-amplifier reduces hissing noise to a minimum

Strudy mechanism providing excelent durability

Fine oil-finished wooden cabinet matching furniture and / or stereo set

 

Outstanding Features

4-track stereo/monaural recording and playback. For playback, the 4000 D requires an external power amplifier and speakers

2 speeds - 3-3/4 and 7-1/2 ips

3 heads - One micron gap recording and playback heads plus erase head

All silicon trasistorized pre-amplifier

Shield type head for high Signal-to-Noise Ratio

Two lever system ensures dependable and durable sure operation

Track selector for simple selection between stereo and monaural

Sound on sound (by using an optional cord). Sound with sound

Automatic shut off, instant stop control

Tape cleaner

Tape speed equalizer

Tape lifter in fast forward and rewind operation

DIN Jack

Stereo headphone jack

3-digit index counter with reset button, 2 VU meters

Fine oil-finished wooden cabinet

Vertical and horizontal operation

Universal voltage selector (from 100 V to 240 V, 50/60 Hz)

 

Specifications

Recording System:  4 -track stereo- monaural system

Motor:  Induction motor

Semiconductors;  17 silicon transitors, 2 Diodes; 2 rectifiers

At 7-1/2 ips :  Frequency Response:  30 to 22,00 cps ±3 dB

At 3-3/4 ips :  30 to 16,000 cps ±3 dB

Distortion: within 2% 1,000 cps  0VU

Wow and Flutter:

At 7-1/2 ips :  less than 0,15% RMS

At 3-3/4 ips :  less than 0,20% RMS

Signal-to-Noise Ratio: better than 50 dB

Input Level:

Microphone:  better than 0,5 mV

Line :  better than 50 mV

Output Level:  0 VU (1,23 V RMS)

Equalization:  Correct equalization for playback of tapes recorded to the NARTS curve

Recording Level Indicator:  2 VU meters

Fast Forward and Rweind Time:  150 sec. Using 1,200 foot tape at 50 cycles. 120 sec. At 60 cycles

Max Recoding Time:

4 hours monaural recording at 3 -2/4 ips (1,200 foot recording tape)

2 hours stereo recording at 3-3/4 ips

Dimensions (W x H x D):  315 x 405 x 180 mm (12-3/8" x 15-7/8" x 7-1/2")

Weight:  11,5 kg (25,3 lbs)


 

Akai X-360 reel-to-reel recorder

Professional Stereo Tape Recorder

The X360 provides you Professional Results in its operation because of these exclusive Akai features:

Magnetic Brake

3-Speed Motor for Capstan Drive

Cross-Fzield Head

Automatic Volume Control (Comput-O-Matic)

Automatic Dust Minder

Automatic Continuous Reverse (Reverse-O-Matic)

Sensing Tape Reverse

4-track stereo/monaural recording/playback

4 speeds; 15; 7-1/2; 3-3/4 and 1-7/8 ips

3 Motors - Hysteresis synchronous 3-speed motor for capstan drive. Two G-pole eddy current out-rotor motors for supply and take up reel drive

4 Heads - Erase; Playback; Record and Biass heads

50 W Solid state amplifier

Shield type head for high Signal-to-Noise Ratio

Tape shifter in fast forward and rewind operation

Electrical track selection

Automatic Stop, Automatic Shut-off

Automatic pinch wheel release

100 KC biased for recording of FM multiplex

4-digit index counter with reset button

Bass and treble controls

VU meters, Tape cleaner

Stereo headphone jack

DIN jack (with selector for High/Low input

AC outlet

Finely oil-finished wooden cabinet

Vertical and horizontal operation

 


Specifications

Tape Speed:  1-7/8; 3-3/4; 7-1/2; 15 ips

Wow and Flutter

7-1/2 ips :  less than 0,04% RMS

3-3/4 ips :  less than 0,07% RMS

1-7/8 ips :  less than 0,16% RMS

Frequency Response:  30 to 18,000 ps at 3-3/4 ips

Distortion:  within 1,5% 1,000 cps  0VU at 7-1/2 ips

Signal-to-Noise Ratio:  better than 50 dB

Input Level:

Microphone :  more than 0,5 mV

Line :  more than 50 mV

DIN :  more than 5 mV ( LOW), 50 mV (high)

Power Output: 

20 W maximum per each channel at Undistorted Power, total 40 W

25 W maximum per each channel at Music Power , total 50 W

Equalization:  Correct equalization for playback of tapes recorded to the NARTO curve

Recording Bias Frequency:  100 KC

Recording Level Indicator:  VU meter x 2

Recording System:  4-track stereo/monaural, crossfield bias system

Fast Forward and Rewind Time:  75 sec using 1,200 feet tape at 50 cycles; 60 sec at 60 cycles

Head:  4 heads for Erase, Playback and record and bias

Motor: 3 motors

For capstan drive - Hysteresis synchronous 3-speed motor

For supply and take-up reel drive - Two 6-pole eddy current out rotor motors

Speaker:  2 x 5" speaker

Transistors:  60

Power Requirements:  AC 100 - 240 V 50/60 Hz

Power Consumption:  70 - 200 VA

Dimensions (W x H x D): 406 x 444 x 254 mm (16" x 17,5" x 10")

Weight:  28 kg (61,6 lbs)


 

Akai X-1800SD reel/cartridge recorder

Akai Cross-Field Reel-to-reel and Cartrdidge Stereo 8 Recorder

Your dream of cartridge recording and playback or Reel-to-Reel recording and playback with the same recorder has come true. This is possible with Akai's X-1800SD, a novelty in the tape recorder world. Akai has combined in one tape recorder all the features that could beattained by using three conventional interconnected recorders.

Cartridge 8-track stereo recording and playback, with an one micron gap head;  Reel-to-Reel 4-track Stereo/Monaural recording and playback, with the Cross-Field head of superior recording capacity; and transfer from rell to cartrdige are unique and exclusive features of this model.

 


Outstanding Features

Reel-to-Reel

4-track stereo/monaural recording and playback

Tape speeds; 1-7/8; 3-3/4 and 7-1/2 ips (15 ips with 15ips adaptor kit)

Heads; Cross-Field head system (Erase, Recording/Playback and Nias heads)

Wide Cross-Field Frequency Response

Two lever system ensures dependable and durable operation

Track selector for simple selection between stereo and monaural

Automatic shut-off and Instant Stopcontrol

3-digit index counter with reset button

Tape cleaner with release button

Tape lifter in fast forward and rewind operation

Cartridge

8-track stereo recording and playback

Transfer fom reel to Cartridge

Transfer safety lock

Tape speed 3-3/4 ips

Heads, Erase and one micron gap recording/playback heads

Cartridge program selector button

Program selection may be remote controlled

Program indicator lamp (also indicates whether cartridge is perfectly set)

One hour of continuous stereo recording and playback

300 foot cartridge tape

Cartridge automatic stop

Reel-to-Reel/Cartridge

Hi-fi stereo sound produced by high capacity 12 W solid stste amplifier and high compliance self-contained speakers

Silicon transistors and shield type head for high Signal-to-Noise ratio

Strudy mechanism for absolute duraability

Main amplifier protector fuse

Tone controls

Tape speed equalizer high visable twin type VU meter

Speaker On/off switch

DIN jack, Stereo headphone jack

Fine oil-finished wooden cabinet

Vertical and horizontal operation

Universal voltage selector (100 V - 240 V , 50/60 Hz)

 


Cross-Field Head

On conventional recorders the signal and biass are applied to the same recording head. Therefore the frequencies recorded, especially the high frequency component of the recorded signal tend to be attenuated or erased by the effect of this bias field. On the exclusive Akai Cross-Filed head which was developed by Akai for practical use the signal and bias heads are mounted in opposition with their centres slightly off. As the recorded signal is entirely unaffacted by the prevailing effect of the bias fielf, the tape can be recorded over the entire frequency spectrum with maximum fidelity.

 

One Micron Gap head

Model X-1800SD utilizes the cross-field head to obtain an amazing level of recording characteristics in reel-to-reel recording. In cartridge recording, the high-quality one micron gap head designed by Akai also gives excellent recording characteristics. This recording characteristic, 50 to 17,000 Hz ±3 dB at a tape speed of 3-3/4 ips, produces excellent results for cartridge tape recordings.

 


8-track stereo recording/playback (cartridge)

Model X-1800SD employs the 8 track stereo system on the cartridge. The tape has a total of eight tracks, two of which are used at a time for stereo recording or playback. These are four choices of channels for stereo recording and playback. When the tape ends, the next channel is automatically positioned for recording or playback. Recording or playback time for one channel is fifteen minutes, and continous one hour on four channels by using 300 foot cartridge tape. The desired channel may be easily selected by manually pushing the Cartridge program Selector Button.

 

Cartridge recording tape (ACT-200, ACT-300)

Akai's 1800 series tape recorders, Model 1800L and X-1800SD are the latest models that are capable of recording with a cartridge tape. For use in this type of recording, we have cartridge recording tapes, ACT-200 with 200 foot long tape, and ACT-300 with 300 foot long tape. This cartridge tapes are highly recommended for best results.

 


Specifications

Reel Tape Spped:  1-7/8, 3-3/4, 7-1/2 ips

Cartridge Tape Speed:  3-3/4 ips

Wow and Flutter::

Reel

7-1/2 :  less than 0,12% RMS

3-3/4 :  less than 0,15% RMS

1-7/8 :  less than 0,20% RMS

Cartridge:  less than 0,25% RMS

Frequency Response

Reel

7-1/2 :  30 - 23,000 Hz ±3 dB

3-3/4 :  30 - 18,000 Hz ±3 dB

1-7/8 :  30 - 9,000 Hz ±3 dB

Cartridge :  50 - 17,000 Hz ±3 dB

Signal-to-Noise Ratio

Reel :  better than 50 dB

Cartridge :  better than 45 dB

Input Level

Mic ;  better than 0,5 mV

Line :  better than 60 mV

Power Output:  6 W maximum each channel at Music Power,total 12 W

Equalization:  Correct equalization for plaback of tapes recorded to the NARTB curve

Recording level Indicator: Twin type VU meter

Recording System:

Reel :  4-track stereo/monaural, Cross-Field bias system

Cartridge :  8-track stereo system

Fast Forward and Rewind Time

Reel :  150 seconds using 1200 foot tape at 50 Hz or 120 seconds at 60 Hz

Recording Capacity

Reel : 

8 hours monauraal recording at 1-7/8 ips (1200 foot tape)

4 hours stereo recording at 1-7/8 ips

Cartridge :  one hour stereo recording at 300 foot cartridge tape

Maximum Reel Size:  7-inch

Motor:  2-speed induction motor

Speakers:  2 x 4" speakers

Semiconductors:  19 Transistors, 13 Diodes

Power Supply:  AC 100 - 240 V,, 50/60 Hz

Power Consumption:  60 VA

Dimensions:  378 x 338 x 238 mm (16" x 13-1/2" x 9-1/2")

Weight:  17 kg (37,4 lbs)

Pioneer T-600 reel to reel

 

Pioneer model T-600 is totally new kind of stereoo tape deck.

Easy loading, split second reversing. Pioneer's T-600 is a stereo tape deck of exceptionally high quality with special features and a host of major and minor innovations. This includes the world's fastest auto reverse -0,5 seconds, one hand Pioneer Loading - easy and quick, unique center capstan drive, and the most advanced solid state circuitry on the market.

Features:

Full facilities for 4-track stereo recording/playback

Quick easy loading

Versatile tape reversal

Staigth-line function lever

Center capstan drive

Automatic braking

Hysteresis synchronous motor

Advanced solid state circuitry for reliable high performance

Four-digit counter with instant push-button resetting

Headphone jack for direct monitoring at any time

Dramatic and dynamic design of true distinction

Special stand to facilitate either horizontal or vertical operation

 


Many expensive recorders offer automatic reverse playback, a few offer automatic reverse recording. But only Pioneer offers automatic reverse playback and recording that operate in less than 0,5 seconds. This unbelievable technological achievement is a significant advance in stereophonic recording. In effect, it means that you have twice the length of tape available when recording. Only now can you be sure of capturing the longest symphony or opera or jazz festival without an ugly, irritating break. This reverse system operates automatically. Or manually - simply push a button and instantly you recent in the reverse direction. With Pioneer's instant reverse working for you, you need never miss a recording opportunity again.

This automatic system uses sensing foil, and is automatically cut out when the function lever is on Fast. Thus it is absolutely impossible for tape damage to occur from the reversal system.

 



Specifications

Tape Drive System:  Center capstan drive with auto reverse recording and playback by means of sensing foil, and manual revers and playback by means of reverse switch.

Track System:

4-track, 2-channel stereo recording an playback

4-track, 1-channel monaural recording and playback

Rec & Playback:  NAB standards

Erasing System:  AC erasing

Reel Size:  up to 7 inches

Motor:  Hysteresis synchronous motor

Heads: 

Two x 4-track, 2-channel Rec/Pb head

Two x 4-track 2-channel Erasing head

Tape Speeds:  7-1/2 and 3-13/4 inches /sec

Rewinding Time:  approx. 110 sec for standard 7-inch reel

Wow and Flutter:  less than 0,12% at 7-1/2 inches/sec,

Less than 0,20% at 3-3/4 inches/sec

Frequency Response: 

30 to 20,000 Hz (50 to 15,000 Hz ±3 dB) at 7-1/2 inch/sec.

30 to 20,000 Hz at 3-3/4 inch/sec.

Signal-to-Noise Ratio:  50 dB

Input Level:

Microphone :  0,45 mv/ 50 k Ω

Line :  45 mv/360 k Ω 

Output Level:

Line Output Fixed :  0,775 mv/ 50 k Ω

Line Output Controlled :  more than 1 V/ 100 k Ω 

Headphones :  more than 0,45 mV/ 8 Ω 

Rec/Pb Connector:  DIN standard

Built-in Pre-amplifier:  18 transistors, 8 Diodes

Power Requirements:  110, 117, 130, 220 and 240 V AC,  50/60 Hz

Power Consumption:  70 watts

Dimensions (W x H x D):  435 x 200 x 422 mm (17-1/4" x 8" x 17-1/8")

Weight:  15 kg (33 lbs)

Sony TC-252 reel-to-reel


The Sony Model TC-252 is a four-track stereophonic/monophonic tape recorder for accurate-recording and playback, featuring built-in amplifiers and lid-integrated stereo speakers.

Special features are:
Vibration free motor
All-silicon transistor for exceptional low noise and distortion
Scrape flutter filter which eliminates undesirable tape modulation distrtion
Automatic sentinel shut-off and retractable pinch roller.
This model operates in either vertical or horizontal position and features dual VU meters for easy to read and the reel capacity is 7-inch.
Sound-on-sound facility of the TC-252 permits composite recording from left channel to right channel and vice versa with its selector switch. Sound with sound and public address are also featured.

Specifications
Track System:  4-track stereo and mono
Reel Size:  7" 918 cm) maximum
Tape Speed:  7-1/2 ips, 3-3/4 ips and 1-7/8 ips (19 cm/s; 9,5 cm/s; 4,8 cm/s)
Recording Time (with 1,800 ft tape)
4-track Stereo
7-1/2 ips (19 cm/s) :  1,5 h
3-3/4 ips (9,5 cm/s) :  3 h
1-7/8 ips (4,8 cm/s) :  6 h
4-track Mono
7-1/2 ips (19 cm/s) :  3 h
3-3/4 ips (9,5 cm/s) :  6 h
1-7/8 ips (4,8 cm/s) :  12 h
Frequency Response
7-1/2 ips (19 cm/s) :  30 - 18,000 Hz
3-3/4 ips (9,5 cm/s) :  30 - 13,000 Hz
1-7/8 ips (4,8 cm/s) :  30 - 7,000 Hz
Signal-to-Noise Ratio:  50 dB or more
Wow and Flutter:  less than 0,12% at 7-1/2 ips (19 cm/s)
Power Output:  4 W max. Per channel
Recording Bias
Frequency :  approx. 85 kHz
Inputs: 
Two Mic Inputs Sensitivity/Impedance:  0,19 mV (-72 dB) / 600 Ω
Two Aux Inputs Sensitivity/Impedance:  60 mV (-22 dB)/ 100 k Ω
Outputs:
Two Line Output Level/Impedance :  0,39 V (-6 dB) / 100 k Ω
Two Speaker Outputs Level/Impedance:  2,7 V (+11 dB) / 8 Ω load
Phone Output level/Impedance:  30 mV (-28 dB) / 8 Ω
Speaker:  two 5" (130 mm) dynamic speakers
Voice coil Impedance:  8 Ω
Semiconductors:  20 Transistors; 3 Diodes
Power Requirements/ Consumption:  117 V AC 60 Hz / 45 W
Dimensions (W x H x D):  408 x 256 x 380 mm (16-1/16" x 10-1/8" x 15")

Weight:  13,5 kg (29 lb 11 oz)

Sony TC 252-D reel-to-reel


A Really Spectacular Buy
The new solid-state stereophonic Sony model 252-D is loaded with exciting quality features including sound-with-sound. Handsomely mounted in a low profile walnut wood cabinet. Here is the most tape deck recorder for the money. And it's a Sony.
Scraoe Flutter Filter
Special precision idler mechanism located between erase and record/playback heads eliminnates tape modulation distortion. This feature formerly found only on professional studio equipment.
Sound-with-Sound
A versatile feature that enables you to record on one channel while listening to the other . Ideal for learning or teaching foreign languages as well as perfecting diction, singing and instrumental music.
VibrationFree Motor
An important new Sony development utilizing "floating" shock absorber action to isolate completely any  motor vibration from the tape mechanism.

Four-Track Stereophonic and Monophonic Recording and Playback
Seven inch reel capacity provides hours and hours of stereo enjoyment. Stereo headphone jack for private listening. Automatic sentinel shut-off. Two VU meters. Pause control, Three-digit tape counter. Record interlock.  Separate record selector buttons. Vertical or horizontal operation
Non-Magnetizing Record Head
Head magnetization build-up , the most common cause of tape hiss - has been eliminated by an exclusive Sony circuit which prevents any transient surge of bias current to the record head.
Instant Tape Threading
Exclusive Sony Retractomatic pinch roller permits simple one-hand tape threading. An automatic tape lifter protects heads fom wear during fast forward and rewind.
Specifications 252-D
Recording System:  4-track stereophonic or monophonic
Heads:
1 Rec/ Pb :  PP30-4202N
1 Erase :  EF 18-2902A
Tape Speed:  7-1/2 ips (19 cm/s) and 3-3/4 ips (9,5 cm/s)
Frequency Response
7-1/2 ips (19 cm/s) :  30 - 18,000 Hz
3-3/4 ips (9,5 cm/s) :  40 - 13,000 Hz
Signal-to-Noise Ratio:  52 dB
Bias Frequency:  85 kHz
Wow and Flutter
7-1/2 ips (19 cm/s) :  0,12%
3-3/4 ips (9,5 cm/s) :  0,15%
Recording Time (with 1,800 ft tape)
4-track Stereo :  3 h at 3-3/4 ips (9,5 cm/s)
4-track Mono :  6 h at 3-3/4 ips (9,5 cm/s)
Inputs Sensitivity/Impedance
Mic :  72 dBs (0,19 mV) / 600 Ω
Aux, Input :  22 dBs (60 mV) / 560 k Ω
Outputs Impedance
Line Out :  more than 100 k Ω
Phone :  8 Ω
Outputs Level
Line Out :  0 dBs (0,775 V) at 100 k Ω load
Semiconductors:  13 Transistors; 3 Diodes
Power Requirement:  117 V AC 60 Hz
Power Consumption:  30 W
Dimensions (W x H x D):  386 x 190 x 340 mm (15-1/4" x 7-1/2" x 3-7/16")
Weight:  8 kg (17 lb 11 oz)