|Category:||Head-Up Display [HUD]|
|Object Name:||HUD Cathode Ray Tube|
|Year of Manufacture:||2003|
|Location:||Cupboard 4 (CRTs) [Main Store]|
Cathode Ray Tube
Made in England
CRT Type XAP0814S6-1
Part Number: AE012956
Serial No. -
Factory Ident No: 3M944000
Code Ident U3008
D. Code 0352M
Drive Cursive 31.3v
Focus Cursive 3460v
Cut Off 55.1v
This is an experimental monochrome precision face tube with electrostatic focus, magnetic deflection and used a P43 phosphor Tube but is very similar to the production unit fitted to the Civil HUD 2020 and 2022. The CRT narrow band P43 Phosphor operates with a Rugate notch Combiner Glass. .A Matching Card with deflection current feedback resistors would normally be fitted to the flat area. This CRT Assembly has 960mm cable (with connector) for its drive signals.
The reference document lists this as fitted to the ‘2022 HUD’ which was a variant of the HUD 2020™ fitted to the Boeing 737NG.
The 2020 system was designed from the outset to be expandable to show cursive, raster and cursive over raster displays such that sensors such as ALMW, FLIR or television systems can be considered. The HUD 2022 was aimed at producing a smaller derivative of the 2020 and work began in January 1997 with delivery of prototype hardware in 1998.
The date code is assumed to be yywwd (yy=year, ww=week number, d=?)