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Old 21st Nov 2022, 8:16 pm   #6
GeoffB17
Tetrode
 
Join Date: Feb 2016
Location: Guisborough, North Yorkshire, UK.
Posts: 80
Default Re: Revox A77 doesn't erase

OK, sounds like the erase head is doing something, but not effective.

Is the tape the correct way round, i.e. the side with the magnetic coating is against the head. Certain tape types are difficult to tell, back coated types are much easier. When you PLAY, does this sound OK/normal? If this seems low level at all, then the tape may be back to front.

Another thing to try - can you erase the tape manually, using a magnet if need be, better a magnet wrapped in paper held against the tape. Even a few minutes. Then PLAY that, and ensure that the old signal is gone (this will remove signal full width). Then try normal RECORD again, and see what difference that makes.

As suggested, even a bit (maybe not visible) dirt on the head may reduce tape/head contact, so clean is important. Also, if other heads have been removed this may have affected the alignment of the erase head so tape is not getting correct tape/head contact?

Geoff
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