UN18/S09
UN18/S10
UN18/S11
- 401 -
CH1/12A. DD 1967/68. WITHDRAWN.
UN18
PAL Demodulator Chrominance
conjunction with UN1/S88A
DD 1967/68. WITHDRAWN.
C06/504 in
CH1/46A.
Unit
and
used in
UNl/583A.
PAL Record Chrominance Unit used in CD3M/503. Identical
with UN18/504 except that operation frequency is
4.429l896MHz and simple mode only. CHl/12A, pegs 3, 39.
DD 1967/68. WITHDRAWN.
NTSC Record Chrominance Unit used in CD3M/503. Identical
with UN18/50S except that operation frequency is
3.583121MHz. CH1/l2A, pegs 4, 38. DD 1967/68.
DD Spec 8.229. WTITHDRAWN.
==========================================================================
UN18 Sub Group not available for new designs. DD 1977.
UN19/S01
UN19/S0lA
UN19/S01B
UN19/502
UN19/502A
UN19/502B
UN19/S03
UN19/505
UN19 LUMINANCE UNITS
Luminance Unit used in GEl/S22 for 625 line standard 'I'.
Reproduces original RGB signals from the luminance signal
from UN1/540 matrixed with colour difference signals I and
Q from UN18/501. CHl/12C. DD 1964. DD Spec 8.183.
DDTM 8.189. OBSOLESCENT.
Similar to UN19/50l but for 625 line standard 'G'.
DD 1964. DD Spec 8.189. WITHDRAWN.
Similar to UN19/501 but for 525 line standard. DD 1964.
DD Spec 8.189. WITHDRAWN.
Luminance Unit used in NTSC colour coder GEl/521 for 625
line standard 'I'. Accepts RGB inputs and chrominance
signal from UN18/502 and mixed sync pulses and gives
output of composite NTSC colour signal at standard level.
CHl/12B. Also used in PAL colour coder GElM/525.
DD 1964. DD Spec 8.198. DDHB 8.169. ACO. OBSOLESCENT.
Similar to UN19/S02 but for 625
DD 1969. DD Spec 8.198. DDTM 8.169.
line standard
OBSOLESCENT.
'G'.
Similar to UN19/502 but for 525 line standard. DD 1969.
DD Spec 8.198. DDTM 8.169. OBSOLESCENT.
Luminance Unit used in GElL/527, GElL/528, GElM/529.
Accepts R-Y and B-Y colour difference signals and provides
output of RGB colour video signals. CH1/l2A, pegs 2, 36.
DD 1966. DD Spec 8.221. DDHB 8.225. ACO. OBSOLESCENT.
Luminance Generator and Mixer Amplifier used in GE6M/509
to provide all components of the multiburst signal except
the sinewave burst signals, and mix the components of the

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