
1) Early Sony recorder 2) Sony recorder 3) Sony video recorder
Found on
https://www.crosswordclues.com/clue/betacam

Betacam is a family of half-inch professional videocassette products developed by Sony in 1982. In colloquial use, `Betacam` singly is often used to refer to a Betacam camcorder, a Betacam tape, a Betacam video recorder or the format itself. All Betacam variants from (plain) analog recording Betacam to Betacam SP and digital recording Digital Be.....
Found on
http://en.wikipedia.org/wiki/Betacam

Analogue, component video format ie broadcast rather than domestic quality. Uses ½� cassette. Now includes Betacam SX and Digital Betacam.
Found on
http://www.encyclo.co.uk/local/20523

A range of half-inch professional videocassette products developed by Sony in 1982. Consists of Analogue and Digital formats.
Found on
https://www.theatrecrafts.com/
No exact match found.