Thread: Zx81
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Old 27th Mar 2020, 5:36 am   #203
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
Posts: 1,154
Default Re: Zx81

Originally Posted by John Earland View Post
P.S the PET by the way is working brilliantly even if the cassette player is a little temperamental-though Iíve read that they often are!
(Off topic I know)
My experience of my PET was you need to demagnetise and clean the heads of the cassette players frequently as some models (particularly the built in one on early PETs) had D.C. bias. Symptoms were unreliable reading and failure to verify. If you look around you can find mains demagnetisers for £15-20, the type that have permanent magnets built into tape cleaning cassettes I never found as effective.
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