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to 6kHz using two telephone channels of 250Hz to 3.4kHz.
Consists of Sending and Receiving Terminals each in three
portable cases CS2/8 enclosing apparatus on 483mm panels.
Transistorised. Includes PA1/26, PA1/27, PA1/28, PA1/29,
PA6/l5, PA6/l6. DD 1960. DD Spec 2.172. OBSOLETE.
OT1/4
Microphone Output C60. Includes Microphone AKG type C60
with Power Supply Unit Type N60 (complete with Mains Cable
and AF Connector Type 6999), Mic. Cable 20 metres long AKG
Type MK60/20, Stand Adaptor AKG Type SA6, Windscreen AKG
Type W17 (with Spring Jacket AKG Type F17), and AT2/6 in
CS2/6A. DD 1964. OBSOLESCENT.
OT1/5
Microphone Outfit C12. CSZ/4 with AKG Type C12 microphone
(including Power Supply Unit AKG Type N12, Polar Diagram
Selector Unit AKG Type U1Z and set of connecting cables),
suspension and mounting adaptor assembly, microphone
adaptor MC1B/3. DD 1965. OBSOLESCENT.
OTl/SOl
Microphone Distribution Outfit
interconnecting cables for use
DD 1959. OBSOLESCENT.
comprising BX3/50Z and
in television studios.
OT1/50Z
Distribution Amplifier Outfit used in Mobile Control
Rooms. Portable case with two AM4/507 and six AM4/508 in
modified CH1/13E with connections on back panel. DD 1962.
DD Spec 8.87. OBSOLESCENT.
OT1/503
Test Generator Amplifier Outfit used in Mobile Control
Rooms. CH1/13F containing GE4/S08, GE4/508A, GE1/508A,
PS2/1Z, AM4/507. DD 1962. DD Spec 8.89. OBSOLESCENT.
==========================================================================
OTl Sub Group not available for new designs DD 1977.
OTZ O.B. OUTFITS
OTZ/l
Sound and Communications Carrier System. Used on Roving
Eye. DD 1956/58. DD Spec Z.104. WITHDRAWN.
OTZ/2B
Suitcase Outfit for use by commentators without an
engineer on simple OBs. Includes crystal microphone Acos
MIC 39, wire stand, transistor amplifier, M.W. cue
receiver with ferrite aerial, headphones, telephone
facilities, lZV accumulator, cable. 406mm x Z67mm x
l40mm. lS.25lb. DD 1956/58. DD Spec 2.235. WITHDRAWN.
OTZ/2E
Suitcase Outfit for use by commentators without an
engineer on simple OBs. Includes a crystal microphone
Acos MIC39, wire stand, transistor amplifier, MF cue
receiver with ferrite aerial, headphones, telephone
facilities, l2V accumulator, cable. Mixer unit provided
to facilitate use of lip microphone and/or effects
microphone. 406mm x 267mm x l40mm. Weight: 6.9kg.

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