< All that having the wrong azimuth would do is reduce the HF response.
Correction: Having the wrong azimuth would do is reduce the already
terrible HF response.
Also if the motor speed is off that will add to the grief (don't assume it
is!). used to work on portable casettes and 2% error was common and some
were 5%+ wow and flutter from bad casette cases/
< There's no way to tell an original played back on a machine with the
< heads at a different azimuth setting to the recording machine and a copy
< of that recorded and played back on the same tape deck AFAIK. No cassett
< recorder had software-controllable azimuth.
Most all have a trap door for a screw driver. the adjustment compensates
for head wear, mecanical error in the guides, sloppy transport. one set
if the transport is any good it need not be touched. Most portables
of the era were terrible.
Allison