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Old 22nd Jul 2019, 10:25 am   #6
Peter.N.
Dekatron
 
Join Date: Jul 2008
Location: Charmouth, Dorset, UK.
Posts: 3,601
Default Re: Philips EL3542 tape recorder problem

I bought one of those new - brilliant machine,not that it helps you. That sort of noise on radios I have had due to a break down in insulation of multi contact switches, the paxolin type anyway, by leakage of HT voltage into the signal circuit.

If you have an external amplifier of some sort you could try tapping the signal off at various points to locate the section that its originating in, or you could use a scope if you have one.

Peter
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