UN1/568
UN1/569
UN1/569A
UN1/570
UN1/57l
UN1/572
UN1/572A
UN1/574
UN1/575
UN1L/575
UN1/576
UN1/577
UN1/577A
- 357 -
UNl
Recoded GE2/542. DD 1965.
625 line Gating Unit used in
of sync pulse for passing
DD 1966. DD Spec 5.103. ACO.
MN2M/508 to gate out bottom
on to UN20/507. CH1/l2A.
OBSOLESCENT.
405 line version of UNl/569. DD 1966. OBSOLESCENT.
Shorting Unit to enable GE4M/518, GE4M/5l8A to be used
without MN2/509. Normally used with GE4M/5l8. CHl/12A,
pegs 2, 32. DD 1966. DD Spec 9.103. ACO. OBSOLESCENT.
NTSC Filter and Delay Unit used in GE1L/527. Accepts the
composite
colour
signal
and
removes
the
chrominance
information, corrects the luminance to chrominance timing
error and gives out the luminance signal. CH1/12A, pegs
4,
39.
DD 1966.
DD Spec 8.228.
DDTM 8.220.
OBSOLESCENT.
PAL Filter and Delay Unit used in GE1L/528. Accepts the
composite colour signal and removes chrominance
information, corrects the luminance to chrominance timing
error and gives out the luminance signal. Also a separate
chrominance signal is delayed by one line period for
further processing in the decoder proper. CH1/12A, pegs
1, 43.
DD 1966.
DD Spec 8.225.
DDHB 8.217, 2.422(76).
ACO. OBSOLESCENT.
As UN1/572 without
CD3L/503. DD 1968.
the 64~s delay facility.
DD Spec 8.300. OBSOLESCENT.
Used
in
Field Pulse Inserter used
standard level input waveform
standards and adds mixed sync
mixed sync and mixed blanking
44. DD 1966. DD Spec 9.82.
in UNlM/575. Fully banks
on 405, 525 or 625 line
pulses. Required input of
pulses. CH1/12A, pegs 7,
OBSOLESCENT.
Field Pulse Inserter Unit used for testing transmitters.
Enables line rate waveforms to be blanked. CS2/l3A with
UN1/574, PS2/l3F. DD 1966. DD Spec 9.83. OBSOLESCENT.
Field Pulse Inserter Unit. As UN1/575 but without CS2/l3A
and with PN3A/19B for mounting in PN3/23. DD 1967.
DD Spec 9.83. OBSOLESCENT.
Colour Waveform Processing Unit used with EP1/508.
Provides outputs of (a) filtered and blanked colour test
signal, (b) re-phased 4.43MHz sine wave, (c) clamped low
frequency video waveform. Mains operated. CH1/12A, pegs
2, 6. DD 1966. DD Spec 8.238. ACO. OBSOLESCENT.
Colour Matrix Unit with 4 inputs and
duplicate) for RGB monitoring of
Mains operated. CHl/26A, pegs 8,
OBSOLESCENT.
3 outputs (each in
RGBY colour sources.
35. DD 1966. ACO.
As UN1/577 but supplied without matrix resistors to permit
insertion of other values to suit particular applications

57