PA17/5l2A
PA17/5l3
PA17/5l4
PA17/5l5
PA17/5l6
PA17/5l7
PA17/SlB
PA17/5l9
PA17/520
PA17/52l
PA17/522
PA17/523
PA17/524A-C
- 2B9 -
PA17
As PA17/5l2
indication
SCPD 1969.
but wiring
logic to
OBSOLESCENT.
modified
give sync
to reverse non-sync
indication logic.
Caption Effects Relay Panel used with GE2/526 to modify a
UN4/502. Fitted on back of PA6A/50l. 229mm x 171mm x
l27mm. DD 1965. DD Spec 8.215. OBSOLESCENT.
Video Relay Panel similar to PA17/504 but with
of 2 chassis each with 12 relays, and panel
l33mm instead of 89mm. Superseded by 3 x
SCPD 1966. OBSOLESCENT.
3 instead
height of
SE3/50l.
Similar to
relays, and
SCPD 1966.
PA17/504 but with 1 chassis only with 12
panel height of 45mm. Superseded by SE3/50l.
OBSOLESCENT.
Source Selection Relay Panel used to route one of 12
sources to each of the last 4 channels of a video mixer.
483mm x 356mm panel. 1967. ACO. OBSOLESCENT.
RGB and MS Changeover Relay Panel providing 2 input, 1
output switching for selection of appropriate RGB and sync
signals from decoder
outputs.
Plate
l06mm x l29mm with
relays and plugs, for fixing on PN3/36 or PN3/23. 1967.
DD Spec 8.256. ACO. OBSOLESCENT.
Video Relay Panel, 24 way. A smaller and improved version
of PA17/503 with a front panel 89mm high fitted with 2
rows of 12 STC relays, and 3 separate rear panels (2 with
24 MUSA plugs each, and 1 with 3 d.c. connectors). 1968.
OBSOLESCENT.
Video Relay Panel, 12 way. Improved version of PA17/502.
Similar to PA17/518 with front panel 89mm high, and 2 rear
panels equipped with Musa plugs and other plugs and d.c.
connectors. 1968. OBSOLESCENT.
Superlock Bank Relay Panel used in EP5/502 to provide a
superlock facility on the bank logic circuits. Flat panel
which mounts on PA6/509. 1968/69. WITHDRAWN.
Superlock Group Relay Panel used in EP5/502 to provide a
superlock facility on the due group logic circuits. Flat
panel which mounts on PA6/5l0. 1968/69. WITHDRAWN.
Video Relay Panel for video switching of EP6/505 colour
telecines at Television Centre. Mounts 24 miniature
sealed relays STC Type 4l90GE in 2 sub-assemblies instead
of 3 as in PA17/5l4. 483mm x 89mm. 1968/69. WITHDRAWN.
Video Relay Panel (24 relays) for switching of pulses
only. 48 inputs, 24 outputs. Similar to PA17/5l8. Used
at BH Pebble Mill. 483mm x l33mm. 1968/69. WITHDRAWN.
Video Relay Panel (24 relays) for general vision switching
to reduce crosstalk. Similar to PA17/5l8. Suffixes
indicate different rear panels. 483mm x 89mm. 1969.

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