kepeb
Well-known member
how close would a 1/2" tape have to be to a standard bookshelf speaker for it to have an effect/erasure or otherwise?
emrr said:My dad left a box of cassette tapes (with recordings) on top of the TV for 6 months (mid '80's), and they were almost entirely blank when played.
spreemusik said:My wife had a purse with a magnetic fastener. Was enough to kill her bank card. I've actually considered making a bank card sheath out of mu-metal. Wouldn't help against the demagnetizer though.
spreemusik said:While on the subject of experimenting, and back on topic, has anyone actually tried erasing tape with a permanent magnet?
It works; it was used on some cheap machines. High frequency is necessary for bias, not for erase.living sounds said:spreemusik said:While on the subject of experimenting, and back on topic, has anyone actually tried erasing tape with a permanent magnet?
It works, but doesn't make a lot of sense. You need a high frequency bias to get good SNR, and the frequncy of a permanent magnet is essentially zero.
abbey road d enfer said:It works; it was used on some cheap machines. High frequency is necessary for bias, not for erase.
HF erase has no direct influence on the quality of recording.living sounds said:abbey road d enfer said:It works; it was used on some cheap machines. High frequency is necessary for bias, not for erase.
Yes, but the bias frequency is fed to the erase head as well for the best results.
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