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BX1
BX1/12
Masthead Box for mounting amplifiers, filters
sealed
weatherproof
conditions.
Casting with
plate. DD 1972. OBSOLESCENT.
etc., in
mounting
BX1 Sub Group not available for new designs DD 1977.
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BX2 JUNCTION BOXES
BX2/1
Used at Manchester to connect lines to Moorside Edge and
Holme Moss. DD 1958. OBSOLESCENT.
BX2 Sub Group not available for new designs DD 1977.
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BX3 DISTRIBUTION BOXES
BX3/l
Used on OT2/50l. DD 1956. OBSOLESCENT.
BX3/2
Power Distribution Box for mast lighting supplies at Stage
3 relay stations. Provides a l15V centre tapped supply
from a 240V a.c. input. Steel box, 38lmm x 35lmm x l52mm
containing a 600VA transformer, double pole switch and
fuses. DD 1967. ACO. OBSOLESCENT.
BX3/3
Power Distribution Box used at relay stations to control
and distribute a 240V a.c. supply. Four fused outlets.
Steel box, 5lmm x 25mm x 229mm with front panel carrying
switch, fuses, socket outlets, and a snake light.
DD 1967. ACO. OBSOLESCENT.
BX3/4
Power Distribution Box used at types I and 11 UHF
translator stations to by-pass and isolate a 4l5V 3 phase
and neutral automatic voltage regulator. 762mm high,
229mm wide, l52mm deep. DD 1967. ACO. OBSOLESCENT.
BX3/50l
Wall mounted unit, 457mm x 457mm x 152mm for distribution
of technical services in television studios. DD 1959.
OBSOLESCENT.
BX3/502
Portable box, 330mm x l52mm x 102mm, fitted with 10 F & E
sockets, 10 microphone transformers and one multiway
socket. Used for distribution of up to 10 microphones in
Television
studios.
Part
of
OTl/SOl.
DD 1960.
OBSOLESCENT.
BX3 Sub Group not available for new designs DD 1977.
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