Hi,
The ReVox A/B 77 machines can be biased for ATR tape whereas the Teac the OP has can't be. This tape is intended for machines like 3M M79, Studers of varying kinds, ATR 100's, MCI, Sony APR 5000, Otaris and the like. This is formulated for professional studio recording/mastering work at 15 or 30 IPS. That was the point intended. The bias oscillators on many older tape machines can't cope with really high bias, ultra high output tapes.