GE2
GE2/531
GE2/532
GE2/533
GE2/534
GE2/535
GE2/535A
GE2/535B
GE2/536
GE2/537
GE2/538
GE2/539
GE2/540
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Post-field Pulse Generator used in UN1/556 to provide, for
blanking purposes, a positive going field frequency output
from a field of negative going field frequency pulses.
Printed board. DD 1964. ACO. WITHDRAWN.
Line Blanking Generator used in UN1/556. From a field of
inverted mixed sync pulses and a feed of mixed blanking
pulses it provides a positive going line frequency output
for blanking purposes. Printed board. DD 1964. ACO.
WITHDRAWN.
Gating Pulse Generator used in UN1/557 to
invert the test line signal to erase the
line
signal.
CH1/12A,
pegs
14,
DD Spec 9.44. DDTM 9.47. OBSOLESCENT.
gate out and
incoming test
24. DD 1965.
Field Trigger Delay Generator used
control gives delay of 75~s-200~s
trigger
pulses.
CH1/12A,
pegs
DD Spec 7.53. ACO. OBSOLESCENT.
EP6/501. Preset
input of field
16. DD 1965.
in
to
14,
Trigger Pulse Generator used in UN1/557. Generates a
trigger pulse at the start of any line in either field
blanking period. 625 line system with switching for any
line. CH1/26B, pegs 19, 23. DD 1965. DD Spec 9.56.
ACO. OBSOLESCENT.
Similar to GE2/535 but for 405
for
any
line.
CH1/26B,
DD Spec 9.56. OBSOLESCENT.
line system with switching
pegs 19, 23. DD 1965.
Similar to GE2/535 but for 605 or 405 line system, fixed
for one line as required. CH1/26A, pegs 19, 23. DD 1965.
DD Spec 9.56. OBSOLESCENT.
Blanking Pulse Generator used with a vertical aperture
correction apparatus. CH1/12A, pegs 14, 15. DD 1965.
DD Spec 7.64. DDHB 7.115. ACO. OBSOLESCENT.
Line and Field Trigger Generator used in conjunction with
UN16/501 to provide 6V p-p positive going line triggers of
duration 4.5~s, and two negative going and one positive
going field pulses of 5V p-p. 625 line monochrome or
colour. CH1/12A, pegs 14, 27. DD 1965. DD Spec 11.13.
DDTM 11.22. OBSOLESCENT.
Timing Pulse Generator used in GE2M/527. Printed board.
DD 1965. ACO. WITHDRAWN.
Local Colour Subcarrier Pulse Generator used in phase
comparison equipment to provide pulses which represent the
phase of the local subcarrier signal in the timing
comparison circuits of GE2/550. Used in EP5L/505 and
EP5M/506. CH1/26A, pegs 4, 33. DD 1965. WITHDRAWN.
Waveform Timing Pulse Generator providing trigger pulses
at appropriate times for generating test line signal
waveforms. Used with GE4/516 and GE4/517 and other units

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