Scully 280 Series - Page 6

GENERAL INFORMATION
1. 2. TECHNICAL SUMMARY
TAPE SPEEDS: 3 3/4 -71/2ips, 71/2- 15 ips;
other speeds on special request.
MULTI- CHANNEL CONFIGURATIONS: 1/4
inch, 1 or 2 channels; 1/2 inch, 3 or 4
channels; other tape widths and chan-
nels on special request.
FREQUENCY RESPONSE: ±2db 35 Hz to 18 KHz
15
ips, ± 2 db 50 Hz to 15 KHz at 7 1/2
ips, ±2db 50 Hz to 7.5 KHz at 33/4 ips.
SIGNAL TO NOISE RATIO: Peak record to noise
(30 Hz to 15 KHz band) using 3M 201
tape or equivalent.
7 1/2 and 15 ips full track.
Stereo or half track .......
FLUTTER AND WOW
Weighted
70 db
65 db
15
ips: 0.08% RMS or better
7 1/2 ips: 0.1 % RMS or better
3 3/4 ips: 0.2% RMS or better
Unwtd.
65
db
60 db
All components between 0.5 and 250
Hz included.
STARTING TIME: Tape reaches full play speed
in 0.1 second.
STOPPING TIME: Tape moves less than 1 1/2"
after depressing stop (15 ips).
TIMING ACCURACY: 99.9%
REWIND
TIME: Approximately 75 seconds for
2400 foot NAB reel.
REEL SIZES: Up to 11-1/8"; 14" on special order.
1-2
TAPE TRANSPORT CONTROLS: Power on and
off, record, individual reel
switches, rewind, fast forward,
start, speed change switch, edit.
AMPLIFIER CONTROLS
size
stop,
Visible Controls: Record level, func-
tion switch, monitoring and meter switch, play-
back level, load termination switch.
Maintenance Controls: (located under
dress strip): Noise balance, playback equaliza-
tion, record equalization low speed, record
equalization high speed, linearity test push but-
ton, linearity control, record-calibrate, refer-
ence set, bias adjust, bias calibrate, bias tuning.
PLAYBACK AMPLIFIER DISTORTION: Less
than 0.5% total harmonic distortion at
+18 dbm.
EQUALIZATION: Follows NAB curves. Capstan
speed switch selects appropriate equal-
ization. CCIR equalization available on
special order.
ERASE FREQUENCY: 60 KHz
BIAS
FREQUENCY: 180 KHz
OUTPUTS: +4 or +8 dbm from 600-ohm bal-
anced line.
INPUTS: Bridging (600-ohm balanced or un-
balanced line) microphone, low impe-
dance (150- 250 ohms).
INPUT IMPEDANCE: 10K ohms.
REMOTE CONTROLS: Record, reWind, fase
forward, stop, play.
POWER REQUIREMENT: 117 volts ac, 50/60
cycles, 275 watts.