Micro-28 Recorder
(140-1177)                 Specifications             Faxback Doc. # 18197

Tape.....................................................Microcassette tape
Tracks.........................................2 tracks, 1 channel monaural
Drive System..................................................Capstan drive
Tape Speeds.....................................2.4 cm/sec. (15/16 ips) and
                                                    1.2 cm/sec. (15/32 ips)
Recording.........................................30 min. (2.4 cm/sec.) and
                                     60 min. (1.2 cm/sec.) per side (MC-60)
Practical Max. Output.................................140 mW at 2.4 cm/sec.
Frequency Response.............................................400-4,000 Hz
                                                             at 2.4 cm/sec.
Fast Play.....................................Approximately 30% faster than
                                                               normal speed
Power Source:
   Internal Batteries......................................Two AA batteries
                                                               (3 Volts DC)
   AC Power ..................................120V with 273-1654 AC adapter
   Vehicle Battery........................................12V with 270-1560
                                                                 DC adapter
   Typical Cassette Recording Time with
   AA Alkaline Batteries.................................15 hours (approx.)
Dimensions....................................4 13/16 x 2 3/16 x 7/8 inches
                                                 (HWD) (121 x 60 x 19.5 mm)
Weight........................................5.6 oz. (160g) with batteries
Included Accessories.....................................Earphone, Carrying
                                                           Case, Erase plug

Specifications are typical;  individual units might vary.  Specifications 
are subject to change and improvement without notice.

Recording system....................................................AC bias
Erase system.................................................Magnetic erase

TEST CONDITIONS
 Dummy load:..................................8-Ohm
 Reference frequency:.........................1 kHz
 0 dB level:..................................1 V
 Reference output:............................50 mW
 Reference tape for overall:..................OA-B431
 Record signal input:.........................MIC jack
 Power supply:................................3 V DC
 Cross talk and erase effect:.................36 dB/oct. bandpass filter 
                                              used
 VOX switch (in record mode):.................Out position with maximum
                                              volume control
 Reference recording output level:............-65 dB
 Tape speed selector:.........................2.4 cm/sec. position

 NOTE:  REC/PB= Record/Playback


 (CS 10/25/95)