VCRs

VCRs

A VCR, or video cassette recorder, is a device that is designed to record and play back video content using video cassettes. It is a type of video recorder that is specifically designed to work with this type of media, and is often used to record television programs or movies for later viewing. The name "VCR" is derived from the fact that it is a recorder that uses video cassettes as its primary storage medium.From: BKSTS Illustrated Dictionary of Moving Image Technology [2013]

Tape Formats

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Published in Cliff Wootton, A Practical Guide to Video and Audio Compression, 2005

Cliff Wootton

Other important considerations are tape tension and head wear. The playback/record head in the VCR might be worn by overuse. The age of the tape heads and the tape tensioning will materially affect the quality of analog playback. Tape tension will affect the synchronization and time-base correction may need to be applied in order to get a reliable signal. You may also get those horrible little tearing patterns in the bottom few lines of the raster.

Optimization of cooling load in the combined vapour absorption–vapour compression refrigeration cycle using exergy analysis

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Journal Information

Published in Indian Chemical Engineer, 2019

Kalpana Mahalle, Pallavi Parab, Sunil Bhagwat

The combined VAR–VCR system is successfully commissioned at one of the branches of Gokul Dairy, Kolhaur (India), for milk chilling operation. Earlier milk was chilled from ambient temperature (30–35°C) to 4°C by the VCR system using 1°C chilled water. Presently, the chilled water is generated by the combined VAR–VCR system. The cooling load on the VAR cycle is about 74% and remaining on the VCR of the combined system (the design is as per Table 1). Reciprocating compressor (300 kW cooling capacity) manufactured by Kirloskar Pneumatic Co. Ltd. is used in the VCR section. The VAR system was manufactured as per specification mentioned in Table 1 by Voltas Ltd. Table 2 illustrates a comparison of performance data for the combined VAR–VCR system with the prototype.

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Optimization of cooling load in the combined vapour absorption–vapour compression refrigeration cycle using exergy analysis