UN2
UN2/503
UN2/503A
UN2M/504
UN2L/505
UN2M/505
- 368 -
8542, 6X4.
OBSOLESCENT.
Spec 9.18.
DDHB 9.28.
DD 1961.
DD
for the calibration of
GE6/50l, GE6/502, PS2/22C.
DD 1963.
DD Spec 9.61.
ACO.
Colour Calibrator used
oscilloscopes. Includes
CH1/26A, pegs 3, 36.
OBSOLESCENT.
Similar to UN2/503 but with the addition of a O.7V square
wave output at high impedance. DD 1967. WITHDRAWN.
Colour Calibrator, similar
addition of a O.7V square wave
and mounted in CS2/l3.
EDI l0004MAY69. OBSOLESCENT.
to UN2/503
output at
DD 1966.
but with the
high impedance
DD Spec 9.61.
Colour Calibrator similar to UN2M/505 but comprising
AMl/549, UN2/503A, and rear panel for mounting on PN3/23.
DD 1967. DD Spec 9.70. ACO. WITHDRAWN.
Colour Coder Calibrator to enable PAL coders with a
subcarrier frequency of 4.43MHz and NTSC coders with a
subcarrier frequency of 3.58MHz to be aligned without the
use of a vectorscope. CS2/l3A with AMl/549 , UN2/503A.
DD 1966. DD Spec 9.70. ACO. OBSOLETE.
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UN2 Sub Group not available for new designs. DD 1977.
UN3/l
UN3/2
UN3/5
UN 3/7
UN3/8
UN3 MANUAL CONTROL UNITS
Used with PA6/2 at Redmoss. DD 1956. OBSOLESCENT.
Control Unit used at Redmoss for local and remote
switching from line to R.B.R. of Light Programme
transmitters at Redmoss, Meldrum and Burghead. DD 1961.
OBSOLESCENT.
Remote Control Unit. Used with Reverberation Plate EMT140
in conjunction with UN3/5 and earthed phantom control
circuits.
DD 1962.
DD Spec 2.187.
DDHB 2.128.
OBSOLESCENT.
Local Control Unit. Used in
mounted in case of EMTl40.
DDHB 2.128. OBSOLESCENT.
conjunction with UN3/4 and
DD 1963. DD Spec 2.187.
Used on PA6M/50 to control tone sent to Meldrum. CHl/l8C.
DD 1965/66. WITHDRAWN.
Used on PA6M/49 to control switching tones sent to line by
Meldrum and to control the switching path from Burghead.
CHl/18C. DD 1965/66. WITHDRAWN.

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