01.09.2015, 02:03
Hallo,
auch wenn der Eine oder Andere keine negativen Erfahrungen mit den Ampex 456 Bändern gemacht hat, ich kann ebenfalls nur auf den Link von Thomas (Gyrator) in Beitrag 9 hinweisen. Mit etwas Gurgeln findet man auch weiter führende Berichte die sich nicht grade positiv über dieses Bandmaterial äussern.
Hier das Statement im Link zum Thema Ampex 407:
Classic Sticky Shed (Sticky Shed Syndrome or SSS) (generally responds to incubation/baking)
Caution: Playing a tape with advanced SSS can rip the mag coat off the base film and leave it attached to the backing. If in doubt, it is MUCH safer to bake a potential SSS tape than play it. This especially true as the SSS effects are often worse at the centre where the pressures are higher.
The Ampex Tape Baking patent is available here.
Ampex/Quantegy 406, 407, 456, 457 (1970s-1980s)
Note: Reports indicate that these problems may exist in tapes made in the 1990s
and later, even under the Quantegy name.
EMTEC SM911 As of 2009-01, there are two confirmed reports that 2003-vintage Emtec SM911 is showing the first stages of SSS. A short bake seems to help it. We don’t yet know for how long before it reverts. I hope RMGI has fixed this! Later reports indicate that this may be shed only, without the stickiness AND that it was limited to one or two batches which were mostly replaced. As of this writing, it has been confirmed that batch number B0134007 was involved. This tape may be better placed with the Agfa, below, under non-sticky shed. Please do not assume that either the prior BASF tape nor the later RMGI tape of the same part number suffers similar issues. We do not know how extensive the EMTEC issues are. As of now it seems to be very limited.
Die negativen Erfahrungen sind wohl auch von der verwendeten Bandmaschine abhängig.
Viele Grüße
Volkmar
auch wenn der Eine oder Andere keine negativen Erfahrungen mit den Ampex 456 Bändern gemacht hat, ich kann ebenfalls nur auf den Link von Thomas (Gyrator) in Beitrag 9 hinweisen. Mit etwas Gurgeln findet man auch weiter führende Berichte die sich nicht grade positiv über dieses Bandmaterial äussern.
Hier das Statement im Link zum Thema Ampex 407:
Classic Sticky Shed (Sticky Shed Syndrome or SSS) (generally responds to incubation/baking)
Caution: Playing a tape with advanced SSS can rip the mag coat off the base film and leave it attached to the backing. If in doubt, it is MUCH safer to bake a potential SSS tape than play it. This especially true as the SSS effects are often worse at the centre where the pressures are higher.
The Ampex Tape Baking patent is available here.
Ampex/Quantegy 406, 407, 456, 457 (1970s-1980s)
Note: Reports indicate that these problems may exist in tapes made in the 1990s
and later, even under the Quantegy name.
EMTEC SM911 As of 2009-01, there are two confirmed reports that 2003-vintage Emtec SM911 is showing the first stages of SSS. A short bake seems to help it. We don’t yet know for how long before it reverts. I hope RMGI has fixed this! Later reports indicate that this may be shed only, without the stickiness AND that it was limited to one or two batches which were mostly replaced. As of this writing, it has been confirmed that batch number B0134007 was involved. This tape may be better placed with the Agfa, below, under non-sticky shed. Please do not assume that either the prior BASF tape nor the later RMGI tape of the same part number suffers similar issues. We do not know how extensive the EMTEC issues are. As of now it seems to be very limited.
Die negativen Erfahrungen sind wohl auch von der verwendeten Bandmaschine abhängig.
Viele Grüße
Volkmar