Turntable:
Diecast aluminium with an anti-static rubber mat and stroboscopic
engraving on rim for 33
1
/3, 45 and 78 rev/min at 50 c/s. A version for
60 c/s is also available. It is accurately balanced, has a diameter of
12 in (305 mm) and weighs approximately 6 lb (2.5 Kg).
Base Plate:
Die cast aluminium, ribbed for rigidity.
Motor
Shaded-pole induction type, magnetically screened by a heavy cast-
iron case and suspended on 6 tensioned springs. The rotor is dynam-
ically balanced within exceptionally close limits.
Voltage:
Dual range-110/125 and 220/250 volts a.c. A separate neon lamp is
required for each range.
Frequency:
50 or 60 c/s, dependent on the motor pulley and turntable fitted.
Alternative pulley and turntable available.
Power Consumption:
Approximately 12 watts.
Wow:
Less than 0.08% r.m.s.
Flutter:
Less than 0.04%r.m.s
Rumble:
Negligible
Insulation:
Tested at 1500 volts ac. for one minute between motor windings and
frame and at 500 volts d.c. with an insulation test meter when a resis-
tance greater than 20 Megohms must be registered.
Motor Switch:
Double-pole, fitted with a switch click supressor across each pole.
Speed Ranges:
31.9 to 34.6, 43.2 to 46.8 and 75 to 81 rev/min. approximately.
Size:
14
5
/8 in (371mm) from back to front; 13
3
/4 in (349mm) wide; 2 in
(51mm) above and 3
15
/16 in (100mm) below underside of base plate
Weight:
17
1
/2 lb (7.9kg)
technical specifications
5
Measured with Gaumont Kalee
Type 1740 meter with 3000c/s
constant frequency record at
33
1
/3, 45 and 78 rev/min
To Next Page
Loading...
