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This model was made in Japan 1977 
    by Tascam with Ampex design.


Inside it's actually the same as Teac 7030,
 or Tascam 25-2.

Connections on the back is XLR instead,
 for RCA as Ampex wanted that design.

The standard ATR-700 has 3 heads but a space,
 is reserved for a fourth reproduce head as a extra option.

This unit has a 4-track head installed for playback function.

Speeds: 3-3/4 and 7-1/2. 

Also models with speed 7-1/2 and 15.

3 different head configurations:
 full track, two track and quarter track 
with either one or two channels capability.

Ampex released 6 different models of the ATR-700.

 The partnumber on the back shows the different versions. 

Adjustable pitch control 5 %. 


This deck have a past history from a 
broadcasting station in Denver Colorado TV 7, KlZ.

Pictures was taken before restoring the unit.

 

Electronic features:
 IC-logic control for error-free operation.
Motion sensing logic allows changing from fast
 forward or rewind mode to reproduce mode smoothly
 without tape spillage or damage.

The direct drive dc-servo capstan motor provides positive tape control.

Other feature is rewind-stop memory switch.



3 motor direct drive and belt driven counter.

Dimensions:
 21 inches tall. 17 wide. 10 deep. 

Weight: 62 lbs. 



Tape width 1/4 inch.

Reel hub size selector: 
2 positions: Small or large reels.


Tape speed accuracy:Within +/- 0,3% at both speeds.

Wow and flutter: 0,08% wrms at 7-1/2 speed.

0,12% wrms at 3-3/4 speed.

Rewind time: 90 seconds for 1200 feet tape.


Three motor direct drive.

Lever type for Cueing.

Operating position: Vertical or Horizontal.

Line output: +4 dbm, 600 ohms,balanced.

Line input: XLR-connectors.

Record /Reproduce frequency:
 7-1/2 speed:40Hz-100Hz +3,
-2dB and 100Hz to 15 kHz +/-2dB.

3-3/4 speed:40Hz to 7,5 kHz, =/-2 dB.

Motion sensing: 
Circuit to detect complete stop of tape before
going into the playmode when PLAY button is pushed
during fast-forward or Rewind.
 
Delay time from stop to the next motion is 0,7 seconds.



On top of the headcover there are switches
 for recording in Sync/Repro.

To the right is the selector switch 
   for using the 2 or 4-track head.






3-position switch to match the bias signal.

Akai X-355 D
(Made 1964)



This deck was found in Atlanta and in very good condition.

After searching for extra options 
like 10-inch extension arms + remote control,
 I decided to keep this unit for it looks,
and actually very good sound.

Solid state, with many built in options.

Auto-Reverse function with a timer!
not so common option.
 Just set the time you want it to reverse, 
and it stops and change direction. 
No sensing foil is needed.



 


 The only flaw is, I don't understand what Akai
 was thinking of...before you Rewind or Fast Forward
 the lower part of the headcover must be pushed down
..
( Not attached in the picture here).

 Otherwise the heads are against the tape.. VERY loud noise.



It's missing the X-355 logo on the right side
 of the facepanel.

The remote have 12 feet cord and operate 
both recording and playback functions + Reverse.

After I found the adaptor kit for 10 inch reels,
 I really like this unit.
Of course a big warning for using the big reels
 in Fforward or Rewind.. 



This Akai is the fastest one I have seen
 rewinding a tape ! 
It takes off like a rocket ! 

The 10 inch reels are attached with
  a rubber suction cup, not very safe..
 But this deck is very different I think,
    has a ugly charm ? 

Tape speed: 3-3/4, 7-1/2 and 15.
(note: another pinchroller and sleeve
 is used for 15 speed)


Wow and flutter (playback only):
 Less than 0,08% RMS at 7-1/2 speed.

Less then 0,14% RMS at 3-3/4 speed.

Timing accuracy: 0,3 at all 3 speeds.

Frequency response: 
30-24,000 cps +/- 3db at 7-1/2.
30-18,000 cps +/- 3db at 3-3/4.
Signal to noise ratio: 
Better than 47 db at normal play.
Recording system: 4-track stereo/mono,
 crossfield system.

4-heads: Recording head. Bias Head.
 Playback head. Erase Head.

Fast forward and Rewind time: 
36 seconds using 1200 feet tape! 
Maximum reelsize: 10-1/2 reels:
 with adaptor kit installed.(extra option)

Motors: 3 motors, beltdriven capstan.

Dimensions: 
17 tall. 16 Wide. 12 Deep. 
Weight: 59,4 lbs.







Remote control is a nice option.





I can leave the adaptors on when using 7 inch reels.

The Akai metal reel was a standard reel with this model.



Beltdriven extension arm when using 10-1/2 reels. 
Akai EA-10.



Pictures © Vintage TX