>long-persistence phosphor. Long persistence phosphor was also used in analog standards converters (a video camera and precision monitor), as in the RCA slow-

>long-persistence phosphor. Long persistence phosphor was also used in analog standards converters (a video camera and precision monitor), as in the RCA slow-scan TV (SSTV) [0] from Apollo-11 [1]. Radio transmission was likely via Frequency-Shift Keying (FSK) [2], and converted to Non-Return-to-Zero (NRZ) [3] (Raw format) on Telemetry Data tape. The video output from the RCA analog standards converter was distributed, and also recorded on either, Amprex 2-inch (tape width) video-recorders in either quadruplex traversal-scan VTR [4] or helicial scan VTR [5]. --- Apollo TV Camera : https://en.m.wikipedia.org/wiki/Apollo_TV_camera https://en.m.wikipedia.org/wiki/Apollo_TV_camera Radio Corporation of America (RCA) : https://en.m.wikipedia.org/wiki/RCA https://en.m.wikipedia.org/wiki/RCA Ampex : https://en.m.wikipedia.org/wiki/Ampex https://en.m.wikipedia.org/wiki/Ampex [0] Slow-Scan Television (SSTV) : https://en.m.wikipedia.org/wiki/Slow-scan_television https://en.m.wikipedia.org/wiki/Slow-scan_television [1] Apollo 11 missing tapes : https://en.m.wikipedia.org/wiki/Apollo_11_missing_tapes https://en.m.wikipedia.org/wiki/Apollo_11_missing_tapes [2] Frequency-Shift Keying (FSK) : https://en.m.wikipedia.org/wiki/Frequency-shift_keying https://en.m.wikipedia.org/wiki/Frequency-shift_keying [3] Non-Return-to-Zero (NRZ) : https://en.m.wikipedia.org/wiki/Non-return-to-zero https://en.m.wikipedia.org/wiki/Non-return-to-zero [4] Ampex 2-inch Quadruplex traversal-scan VTR : https://en.m.wikipedia.org/wiki/Quadruplex_videotape https://en.m.wikipedia.org/wiki/Quadruplex_videotape [5] Ampex 2-inch helical-scan VTR : https://en.m.wikipedia.org/wiki/Ampex_2_inch_helical_VTR https://en.m.wikipedia.org/wiki/Ampex_2_inch_helical_VTR [6] Video Tape Recorder (VTR) : https://en.m.wikipedia.org/wiki/Video_tape_recorder https://en.m.wikipedia.org/wiki/Video_tape_recorder --- Also long-persistence phosphor was also used in Kinescope (Kine), video to film converters. : https://en.m.wikipedia.org/wiki/Kinescope https://en.m.wikipedia.org/wiki/Kinescope