GEl
GE1/12
GEl/SOl
GE1/502
GE1/503
GE1/504
GE1/504A
GEl/50S
GE1/506
GE1/507
GE1/507A
GE1/508A
GE1/509
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commercially made ringing current generator, nominal 25Hz.
SCPD 1972. OBSOLESCENT.
Noise Generator used for the operation of C08/l. Printed
circuit
board.
254mm
x
l27mm
x
with
ISEP
25
way
connector. DD 1972. DDMI6.278(76). OBSOLESCENT.
Locking Signal Generator for synchronisation of Pulse and
Bar Waveform Generator Type PTC.1201 to line trigger
pulses. Mounts inside Type PTC.120l. Valves: CV492,
E88CC. DD 1958. DD Spec 9.5. OBSOLESCENT.
Cue Dot Generator for generating a cue dot on any picture
passing through a central mixer. Fed from AM18/501 and
normally followed
by
AMS/501.
Chassis CH3/1E.
Weight:
201b. Valves: 3 3A/167M, 10 E88CC, E9lH. DD 1960/62.
DDHB 8.94. TI.TVX.9. WITHDRAWN.
50c/s Locking Voltage Generator used with radio camera to
lock in phase with other cameras. Includes PS3/l9,
AMS/503, AMl/503. DD 1960/62. DDHB 8.80. WITHDRAWN.
Colour Sub-carrier Generator for use on 625 line NTSC
colour system or as reference on SECAM systems. Provides
sub-carrier of 4.4296875Mc/s and output at 3l250c/s which
is twice line frequency. Includes high stability crystal
oscillator and frequency dividing and multiplying
circuits. Comprises 2 PN3/2l (A and B). Panel A mounts
oscillator and PS2/503A, and Panel B mounts AM4/509,
C02/504,
C02/503,
C02/505,
2
C02/502,
AM4/5l0.
DD 1960/62. DDHB 10.2. WITHDRAWN.
Modified GE1/504 to produce simultaneous NTSC and PAL
colour sub-carriers. Includes additional items OS2/509,
MD1/504, C02M/5l3, C02M/5l4. DD 1960/62. WITHDRAWN.
Colour Encoder Generator for NTSC colour signal on 625
line standard with sub-carrier of 4.43Mc/s. DD 1960/62.
WITHDRAWN .
Field Sawtooth Generator.
DD 1962. DD Spec 8.76. ACO.
Part of UN4/50l
OBSOLESCENT.
CH1/12A.
Line Sawtooth Generator. Part of UN4/50l.
DD 1962. ACO. OBSOLESCENT.
CHl/12A.
Modified GE1/507 used on UN4/502 and UN4/502A. DD 1962.
DD Spec 8.83. OBSOLESCENT.
Bar and Sawtooth Generator used in OT1/503. Supersedes
GEl/508, 405, 525 and 625 lines. CH1/12B. DD 1963.
DD Spec 9.31. DDHB 9.36. ACO. OBSOLESCENT.
Colour Encoder for producing composite signal from red,
green and blue signals and ancillary signals from NTSC 625
line or 525 line systems. Comprises PN/23 with UNl/5l2,
UNl/5l3,
UNl/5l4.
DD 1962.
DD Spec 8.125.
DDTM 8.137.
OBSOLESCENT.

48