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VR1000C with delay line - VT6 (1966)	VR2000 - VT2? (1966)
Quad machines required a fairly complex cleaning and lineup proceedure before a tape could be played. This was allowed for in the lineup period before a booking. To get an idea of what was involved, click here for a series of video demonstrations. Remember that these applied to every tape that was played!
RCA TR22 - VT16 (1966)	RCA TR70C - VT38 (1978)
VR1200s - VT7A&B (1976)	AVR2 - VT22? (1981)
VR3000 - Edmonton (1978)	Sony HDD1000 Hi-Vision VTRs - TC1 Gallery (1989)
VPR2s - VT35 (1982)	VPR6s - Edit Suite G (1986)
Beta SP - Edit Suite B (1989)	D3 - Barcelona (1992)