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UNl
15, 42. DD 1966. DD Spec 2.280. OBSOLESCENT.
UNl/78
Wideband Input and First Mixer Unit used in EP7/7, EP7/7A
for stereo or mono working on in place of UNl/33 in the
equivalent mono equipment EP7/4, EP7/4A. Includes MXl/2
for converting the 2.6MHz output from UN22/I to the IF of
10.7MHz.
CHl/27, pegs 1,
5.
DD 1966.
DD Spec 5.136.
ACO. OBSOLESCENT.
UNl/79
Stereo Line Check Unit used at Wrotham on PAlM/55 to
provide test points for line and equaliser measurements
and phase equalisation for A and B legs. CHl/18E, pegs 8,
42. DD 1966/67. WITHDRAWN.
UNl/80
Tone Gating Unit used to provide
approximately 0.5 second duration every
distribution to studios in Broadcasting
DD 1966/67. DD Spec 3.451. WITHDRAWN.
gated tone of
15 seconds for
House. CHl/18C.
UNl/81
Tone Gating Unit to provide gated tone of approximately
0.5 second duration at intervals between 5 and 10 seconds
as
selected.
CHl/18C.
DD 1966/67.
DD Spec 3.451.
WITHDRAWN.
UNl/82
Control Lines and Power Unit used in EQ7M/2 to provide a
connecting point for control lines, power supplies and
switch for battery operation. CHI/18D. DD 1967.
OBSOLESCENT.
UNl/83
Programme Input/Output Unit used in EQ7M/2.
DD 1967. OBSOLESCENT.
CHl/18D.
UN1/84
Track One Recorder Unit used in RD4M/5 to record a
dialling sequence and erase when required. A pulse
checking counter is mounted in UNl/86. Includes a
telephone dial, amplifier, oscillator and pulse unit.
CH1/18E. DD 1967. DD Spec 2.298. WITHDRAWN.
UNl/85
Tracks Two and Three Recorder Unit used in RD4M/5 to
record verbal messages and erase when required, CHl/lSE.
DD 1967. DD Spec 2.299. WITHDRAWN.
UNl/86
Track Four Recorder Unit used in RD4M/5 to record a short
tone pulse for control sequence purposes and erase when
required. Houses cyclometer dial for use with UNl/84.
CH1/18E. DD 1967. DD Spec 2.300. WITHDRAWN.
UNl/87
Monitor Unit used in
Comprises a 64mm, 35~
DD 1967. WITHDRAWN.
RD4M/5 to monitor tracks 2 and 3.
loudspeaker mounted in CHl/18E.
UN1/88A
Mounting
CHl/37C.
Unit for Neve 2262 compressors.
SCPD 1975. OBSOLESCENT.
Modified
UN1/S9
Programme Switching Unit used with
Includes tone and programme switching
CHl/l8E with 2 x 32 McMurdo
DD Spec 3.457. ACO. OBSOLESCENT.
Type D
relays
plugs.
Equipment.
and AM9/S.
DD 1967.

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