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Old 15th Nov 2019, 11:36 pm   #6
Michael Maurice
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Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,222
Default Re: Revox A77 Recording Fault

I wonder if the tapes are suffering from SSS Sticky Shed Syndrome. You may find its deposited the oxide on the heads, maybe a little more on the record head which has given rise to the fault you described.

Thoroughly clean the heads with cotton buds and Isopropyl alcohol. The only use new tape such as RTM, Zonal and BASF.

One other thing, the calibration pots can fall to pieces, so these may require looking at.
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