UN9/S09
UN9/S09A
UN9/510
UN9/511
UN9/ Sl1A
UN9/S12
UN9/512A
UN9/S13
UN9/514
UN9/514A
UN9/515
UN9/5l6
UN9/5l7
UN9/Sl7A
UN9/Sl8
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UN9
Single Channel Switch Unit used on AMl/S04. Includes
NE1/S10. DD 1961. DD Spec 8.67. ACO. OBSOLESCENT.
Modified UN9/S09 with an output of IV positive going video
in
addition
to the 2 outputs at -12dB
level.
Used
in
AMl/516A. CHl/12A, pegs 10, 3. DD 1968. DD Spec 8.314.
OBSOLESCENT.
Switch Unit used on AMl/504. CHl/12A.
NEl/5l9.
DD 1961.
DD Spec 8.66.
ACO. OBSOLESCENT.
Three Channel
Includes 3
EDI 10035(1)MAR72.
Sync Source Switch Unit used on AM18/503. Selects one of
three inputs: mixed sync, video A. video B. CH1/12A.
DD 1961. DD Spec 8.74. ACO. OBSOLESCENT.
Colour facilities
OBSOLESCENT.
of
UN9/511.
DD 1968.
version
Video Source Switch Unit used on AM18/503. Selects one of
two
inputs.
CH1/12A.
DD 1961.
DD Spec 8.75.
ACO.
OBSOLESCENT.
Colour facilities
OBSOLESCENT.
of UN9/512.
DD 1968.
version
Used with RC1A/503A to provide a two channel facility on
RC4/S0l. DD 1961. DD Spec 6.89. OBSOLESCENT.
Video Switch Unit.
DD Spec 8.82. ACO.
Part of UN4/50l.
OBSOLESCENT.
CH1/12A.
DD 1962.
Colour facilities
OBSOLESCENT.
of
UN9/5l4.
DD 1968.
version
Part of UN1/522. Switches input and output of other units
to
change
slaving
mode.
CH1/12A.
DD 1962/63.
DD Spec 8.119. ACO. OBSOLESCENT.
Sync Pulse Switch Unit used in PAl8/508
standard mixed sync pulse waveforms. Three
output driving AMl/509. CH1/12A.
DD Spec 8.144. ACO. OBSOLESCENT.
for switching
inp,.ts and one
LD 1962/63.
Consists of two printed boards each l02mm x 76mm. No.l is
Input High Speed Switch used to sample video signals in
C06/S01. Thirty six are assembled with one No.2 in
PA1/514. No.2 is Input High Speed Switch Supply providing
supply and signal connections for No.l assembly. DD 1963.
DD Spec 7.32, 7.33. OBSOLESCENT.
Similar to UN9/517 but No.l board has different transistor
for use in C06/S03. DD 1965. DD Spec 7.72. OBSOLESCENT.
Consists of two printed boards each l02mm x 76mm. No.l is
Output High Speed Switch used for voltage sampling in
C06/501. No.2 is Output High Speed Switch Supply used
with assembly of 36 of No.l to make supply and pulse

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