UN1/S08
UN1/509
UN1/S09A
UN1/5l0
UN1/5l0A
UN1/511
UN1/5l2
UNl/513
UNl/5l4
UNl/5l5
UNl/5l6
UN1/5l7
351
UNl
signal connections. DD 1961. DD Spec 9.24.
OBSOLESCENT.
DDHB 9.32.
Ga ting Uni t
Valves: 8
DD Spec 9.24.
used on UNl/507. CH1/2. Mains
E88CC, M079, 83Al, E182CC.
OBSOLESCENT.
operated.
DD 1961.
Sync Mixer Unit used with UN1/S06. Contains switch for
switching from normal pulses to regenerated sync pulses.
CHl/43, pegs 1, 2, 15. DD 1961. DD Spec 7.7. DDHB 7.51.
ACO. OBSOLESCENT.
Similar to UN1/509 but is less switch and is intended for
remote operation. DD 1961. DD Spec 7.7. OBSOLESCENT.
Sync Pulse Separator used on AM18/S03 to feed signals from
UN9/5ll to GE2/504 and to delay lines mounted in UN1/5l0.
CHl/12A. DD 1961. DD Spec 8.73. ACO. OBSOLESCENT.
Colour facilities version
DD Spec 8.73. WITHDRAWN.
of
UN1/5l0.
DD 1968.
Signal Measuring Unit used with oscilloscopes for accurate
measurement of signal amplitude. Transistorised version
of UN2/50l with signal and calibrating waveform mixer.
Mains operated. 254mm x l78mm x l52mm. Transistors: 4
OC140.
DD 1961.
DD Spec 9.20.
DDHB 9.27.
ACO.
OBSOLESCENT.
Luminance Unit used in GE1/509. Produces luminance signal
from R.G. & B. inputs and adds to chrominance signal from
UN1/5l3 and passes through linear phase filter of 5.5Mc/s
bandwidth. Printed boards on CH1/12B. DD 1962.
DD Spec 8.123. DDHB 8.134. OBSOLESCENT.
Chrominance Unit used in GEl/509. Produces chrominance
information of NTSC signal from R.G. & B. signals and
ancillary signals from UN1/514 and feeds it to UN1/512.
Plug in boards for 625 or 525 line standards. CH1/12D.
DD 1962. DD Spec 8.122. DDHB 8.135. OBSOLESCENT.
Power and Sub-carrier Processing Unit. Part of GE1/S09
NTSC colour encoder. Provides power supply for encoder
and also provides processed ancillary signals used in
UN1/513.
625 or 525 line standards using sub-carrier
of
4.43Mc/s or 3.58Mc/s. CH1/12B. DD 1962. DD Spec 8.100.
DDHB 8.136. OBSOLESCENT.
Degaussing Coil
round front
transportation,
DD Spec 8.220.
tube mask and metal
colour receivers,
picture impurities. DD
ACO. OBSOLESCENT.
parts
after
1962.
for degaussing
of tube of
to remove
DDHB 8.117.
Picture Sync Unit used with UN1/20 on Ampex non-intersync
machines
to
give
approximate
picture
sync.
DD 1962.
WITHDRAWN.
Picture Discriminator.
Part of UN1/522. Converts the

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