User talk:2605:6000:895D:B600:88F5:4F31:4C03:E39D

Added an image of the ASR-7 CRT-based PPI (Plan Position Indicator) display unit because it fits well with the ASR-7 being rightly labeled 'older technology'. The ASR-7 display is also known as the FA-8968, NSN 6625-01-022-3203. The display is internally more like a vector monitor than a raster-based computer monitor or television set. The sweep control input is a 5-wire synchro. (Opinion: I believe that it is an X-Y vector display with an internally generated rotating scan line rather than the older type using a rotating deflection yoke) I have contacted the manufacturer Raytheon, and the last contractor I could find officially assigned to repair this item in an effort to get more information on it. Raytheon no longer services the ASR-7, nor does the contractor later assigned to continue the maintenance of legacy equipment do so, and the tech manuals seem unfortunately unavailable. This doesn't mean there are no ASR-7s still in service somewhere around the globe, but it is late 1970s technology. A repair label on the 12,000 Volt power supply assembly has a 1981 date. The ASR-7 PPI display shown is in my private collection and I hope to find the tech manual for study and restoration.--CRT Hobbyist (talk) 05:49, 4 August 2019 (UTC)