Just was given this unit Armaco BTE-656 Bulk Tape Eraser.Tried using it per instruction leaflet and while it erases okay their seems to be a thump or whoosh sound periodically throughout both sides of the Tape.I read somewhere but can't think of where that is that this is some source that comes from not using the unit correctly,not sure as I followed instructions to the letter.Could this be something I'm doing wrong or what?Instructions I find could be misleading:
On the net I found this"
The "whomp, whomp, whomp", is a low frequency repetitive artifact left by improper technique in the erasing process! They sound like a low frequency "whooshing" noise or a "whomp" and can often be heard on improperly erased analog audio tapes (cassette and reel-to-reel), particularly when tapes are wound at high speed while listening to the audio output. Nobody seems to know what these "whomps" would translate to on data or digital audio tape, but you can be sure it is NOT to be welcomed by any equipment!
The "whomp's" are inadvertently recorded by using the wrong technique, while trying to erase the tape, usually by switching the eraser off while the tape is still in the eraser's magnetic field, or sharp jerky movements of the tape while erasing. Broadcasters discovered the benefits of carefully erasing cartridge tapes when it was found that very low frequency "whomps" were knocking their transmitters off the air! It follows, that the cleaner erase job you do, the less potential problems you will encounter later.
On the net I found this"
The "whomp, whomp, whomp", is a low frequency repetitive artifact left by improper technique in the erasing process! They sound like a low frequency "whooshing" noise or a "whomp" and can often be heard on improperly erased analog audio tapes (cassette and reel-to-reel), particularly when tapes are wound at high speed while listening to the audio output. Nobody seems to know what these "whomps" would translate to on data or digital audio tape, but you can be sure it is NOT to be welcomed by any equipment!
The "whomp's" are inadvertently recorded by using the wrong technique, while trying to erase the tape, usually by switching the eraser off while the tape is still in the eraser's magnetic field, or sharp jerky movements of the tape while erasing. Broadcasters discovered the benefits of carefully erasing cartridge tapes when it was found that very low frequency "whomps" were knocking their transmitters off the air! It follows, that the cleaner erase job you do, the less potential problems you will encounter later.
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