Museum of the Broadcast Television Camera

There is a lot of information about the MkIX camera and the main picture sequence is divided into 4 main sections with other sections as below.

The MkIX was launched at the 1978 NAB exhibition in America and the MkIXB was announced in 1981


A range of Lenses were available:-

10:1 Varotal XXII, f/2.9, m.f.d 1.2m (4ft), servo zoom and iris, weight 11.4kg (25lb).

10:1 Varotal XXX f/2.2, m.f.d 0'45m (1.5ft) servo zoom and iris, weight 19kg (42lb).

16:1 Varotal XVI f/2.2, m.f.d 3.0m (10ft) servo zoom and iris, weight 22kg (48lb) x 2 range extend.

15:1 Angenieux 15 x 18 L81 f/2.4, m.f.d 0.55m (1ft 9in), servo zoom and iris, weight 15kg (34lb) x1'5 x2 x 2.5 range extenders on turret.

18:1 Angenieux 18 x 27.5 E81 f/2•0 m.f.d 3m (10ft) servo zoom and iris, weight 30kg (65lb) x1.5 and x2 range extenders on turret.
Angenieux 42:1 16 x 675 f/2•0 m.f.d .64m. servo zoom and iris, weight 24kg (53lb).

Canon 17 x 30BI, f/2.2, m.f.d 3.5m (11 5ft) servo zoom and iris, weight 20kg (44lb).

All the Lenses could be used on the MkIX or the MkVIII cameras with the appropriate lens module in the camera body. In the MkIX shot box there is a PCB that can be rotated to select the lens type in use.

Camera body:-
Page 01 Camera lens side
Page 02Camera cable side
Page 03Camera front & rear views
Page 04Camera side open
Page 05Camera, A and B differences
Page 06Camera head amplifiers
Page 07Camera power supply module
Page 08Camera viewfinder B-01-3128 top side
Page 09Camera viewfinder B-01-3128 under side
Lens systems:-
Page 10Angenieux Lens open
Page 11Lens camera amplifier module
Page 12Shot Box Interior with link PCB.
Page 13Light splitter and scanning yokes
Page 14Automatic lineup diascope slide
Page 15spare page
Page 16spare page
Page 17spare page
Page 18CCU Front view
Page 19CCU Main PSU
Page 20 CCU Main PSU part dissembled
Page 21 CCU Mains power input filter
Page 22CCU Automatic Registration PCB #1
Page 23CCU Shading and talkback PCB #4
Page 24CCU Manual colour balance panel PCB #5
Page 25CCU Automatic computer colour balance panel #5
Page 26CCU Video amplifier PCBs #7, 8 & 9
Page 27CCU PCB card extender
Page 28Test Jig for main PSU Type W-10-1623-02
Page 29spare page
Other items:-
Page 30 Operational control panel (OCP) Iris & lift
Page 31 spare page
Page 32 Processor test unit
Page 33 spare page
Page 34 Camera in operation #1
Page 35 Camera in operation #2

Circuit Diagrams:-

CCU electronics frame fig. 1-2-10 fig. 1-2-11

B3128 Viewfinder for MkIX :- fig. 2-1, fig. 2-3, fig. 3-1, fig. 3-2, fig. 3-3, fig. 3-4

Tube Notes, obtaining best results.

Marconi MkIX restoration notes


Mark IX B3265 Brochure

Mark IXB B3265B Brochure


Period advert B3265 September 1978
Period advert B3265 September 1980

Technical descriptions:-
MkIX Automatic Line-up Facilities, from Communications & Broadcasting, summer 1978*.
MkIX Colour Coder description, from Communications & Broadcasting, summer 1978*.


Vol 1 MkIX B3265 Camera CT1309/2; Parts 1 to 3 and sections 1 & 2 Description & maintenance.
Vol 2 MkIX B3265 Camera CT1309/2; sections 3, 4, & 5, Description & maintenance continued.
Vol 3 MkIX B3265 Camera CT1309/3; sections 6, 7, & 8, Description & maintenance continued.
Vol 4 MkIX B3265 Camera CT1309/ ; Parts list.
Vol 5 MkIXp for the companion portable camera.
Supplement 6 MkIX B3265 Camera CT1309/3; Changes and new facilities. (supplement volume)

Viewfinder B3128, T8149; Familiarization, Block diagrams and parts list.

Lens data & handbooks from the lens manufacturer.

MkIX Camera Users List:- "used by"

* A Marconi publication.