Standard Alignment Tape Recorder for EIAJ Type I Videotape Recorder

Hiroshi Sugaya, Masahiro Deguchi, Hiroshi Taniguchi, Taketoshi Yonezawa

A standard alignment tape recorder for EIAJ type I VTR (STD-VTR), which was requested by the Electronic Industries Association of Japan (EIAJ), was developed. This recorder was especially designed considering durability, reliability and accuracy in order to maintain a high level for the standard. The main parts of the tape guide portion were made of high wear-resistant ceramic. The adjustment and calibration of the characteristics were performed very carefully. One of the most important functions of the standard tape is the skew characteristic, and, therefore, the tape tension was maintained within ±1 g by a closed-loop servo system using an air column. — In connection with the development of this recorder, the characteristics of EIAJ type I VTRs on the market were evaluated. There were some characteristic differences, but no serious problem of tape interchangeability between different manufacturers with the exception of the skew characteristics. The standard alignment tape will be applied in order to realize a yet higher tape interchangeability (including skew characteristics) as well as a more easy VTR operation.

Print ISSN
Published
1974-11
Content type
Original Research
DOI
10.5594/J10615