Akai GX-600 D Nagra IV-SJ ASC AS 5004 Studer A810 Tandberg TD-20 Studer Revox Revox B77 Dolby Stellavox TD9 Akai GX-630 DB Revox A77 Revox A-77 ORF Otari MTR-100 A Teac A-2340 RS Revox PR-99 MK Revox A 77 Revox A77 Studer A 812 Wega B 4610 Tesla B 116 Akai GX-635 DB Revox A 77 4 Stellavox TD9 Philips N 7300 Revox A-700 2 Braun TG 1000 4 Revox A77 Dolby Studer A-810 TC Akai 1721 W Revox A 77 Akai GX-600 DB ASC AS-6004 S Revox B77 2 Nagra T Audio Uher Report Revox B-77 MkII Tandberg TD-20 Tandberg 3500 X Revox B-77 MkII Akai X-201 D Uher SG-562 Revox B-77 MkII Grundig TS-1000 Braun TG 1000 Revox A77 Teac A-3300 SX Tascam MS-16