IVC videotape format
IVC 2 inch Helical scan was a high-end broadcast quality helical scan analog recording VTR format developed by International Video Corporation (IVC), and introduced in 1975. Previously, IVC had made a number of 1 inch Helical VTRs. IVC saw a chance to make a VTR that would have the quality of the then-standard 2 inch Quadruplex videotape format but with the advantages of helical scan. They then developed a VTR using this technology, the IVC Model 9000.
- IVC 9000 (NTSC and PAL unit, could record for 2 hours on one 10.5 inch reel)
- IVC 9000-4 (4 ips tape speed, Long Play, could record and play back 4 hours on one 10.5 inch reel
- IVC 9000-W (8 MHz record and playback for super bandwidth)
- IVC 9000-M (could record and playback video in the 655-line/48 field per second (24 frame/s) video standard)
- IVC 9000-W-M (An IVC 9000-M with options from the 9000-W added to it, enabling both 8 MHz wideband video recording and 655/48 capability)
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