Quote:
Originally Posted by radiotechnician
The discussion so far has covered the usual bases. There is one thing
that I remember about the EL 3542 A from the past.
The automatic stop circuit derives voltage to work the metallic
leader relay from the cathode of output tube.
This voltage charges a capacitor which discharges into a relay,
which in turn applies a high voltage to the release magnet.
Check that assembly thoroughly . If worn, dirty, or arcing,
it may throw noise.
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Thanks. Have had a look at this area and as far as I can see it all seems ok.
Quote:
Originally Posted by BillDWVA
Another thing to check: Has the machine been used in ‘Record’ recently? From my previous experience of servicing a Philips machine of similar age one problem that caused noise/distortion was dirty switch contacts in the Rec/Play changeover switch. Try a bit of contact cleaner and working the switch back and forth a few times - with the power off.
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Many thanks Bill. It has not been used for recording for about a year but all switch contacts have been cleaned. The noise still persists and I am waiting for replacement capacitors to arrive. I will update any progress, or lack of, as and when.
Nick