Radio Shack TRS-80 Hardware Manual page 64

Technical Specifications
5-Meg 15-Meg
Disk
RPM
3G00
Recording
Capacity unformatted;
per drive
(megabytes}
6,38
per surface
(megabytes)
T.ba
per
track (kilobypi.es)
10.40
Recording density
(BPl)
Step
mm
(milHseuunUii)
Access
time (milliseconds)
Maximum
track-to-track
average
head
settling
time
7690
175
3
99
•5
Disk
mechanical dimensions
(inches}
height 3,25
width
5L75
length
8.00
Hard
disk
drive
case dimensions
(inches)
height
14.00
width
5£0
length 15,00
Backwail
dearance requirement
(inches)
3
Hard
disk drive
system power
120 VAC,
60
HZ.
.90
amps
Disk power
+
1ZV du + /-
10%
1,5
amps
typical,
5
amps
typical
motor
start.
+
5Vdc
-/-
5%
15
amps
typical.
Environmental
ambient temperature
operating
12.fl
a
C
to
29,4*0
(5£*F
to
85 D
F)
n
onoperati
ng
-
40 °
C
to
60° C
(
-40
a
F
10
140
D
F)
Relative
humidity
6%
to
80%
Max. wet bulb
temperature
26°C
without
condensation
3600
19.14
&19
10X0
9090
#1
175
3
So
15
125
5.75
B.0Q
14.0(9
5.50
15.00
120 VAC. 60 HZ,
.90
amps
1.5
amps,
typical,
5
amps
typical
moior
start.
!
.5
amps
typical,
12.8*0
to
29,4*0
(55°F
to
RS°F)
-40°C
to
eo^c
(-40°F
to
140°F)
6
%
to
80%
26 <J
C
without
con
den
sari
on
60