1" SMPTE Type C Helical Video Format
1" SMPTE Type C Information:
Videotape Format: 1” SMPTE Type C
In use: 1976 - mid 1990s. Still in service at some smaller TV stations.
Recording mode: Analog video, one field per head rotation.
Features: High quality analog video. Stereo audio plus time code track.
Existing machine longevity: Moderate to somewhat low..
Videotape longevity: Moderate.
Prior usage: Replacement for 2" quad for broadcast, educational, military, and closed circuit television allocations. Most widely used 1” videotape format.
Notes on the 1" SMPTE Type C... Sony and Ampex came to an agreement in 1976 for the establishment of a common 1” tape format, 1” Type C. NEC, Hitachi, and RCA made machines also. With reduced operation, maintenance, power consumption, and floor space, 1” type C gained worldwide acceptance as a replacement for 2” quad, the original videotape machine. Sony’s first models were the BVH 1000, 1100, and 1100A, and the Ampex VPR-1 C, VPR 2, and VPR 2B were made early on. In 1981 or so, Sony introduced the BVH 2000, one of their most successful models, and the Ampex VPR series continued with the VPR-3, VPR-6, and VPR 80. RCA introduced the TR-800 model, NEC brought out the model TT-7000, and Hitachi introduced the HR series. There were other models as well, including the Sony BVH 2800, which had a PCM (center stripe) digital stereo audio track, which was popular with the music video industry. Portable units for field recording included the Sony BVH 500 and the Ampex VPR-20. Eventually, D1, D2, and D3 digital videotape, along with Betacam SP, DV Cam, and Digital Betacam, ended type C’s very successful track record in the 1990’s, for most users.