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Old 25th Sep 2018, 11:31 am   #28
ukcol
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Join Date: May 2003
Location: Harlaxton, Lincolnshire, UK.
Posts: 3,944
Default Re: Transformer safety?

The Murphy A362 is a live chassis AC only set as has been said. The later A372 is identical in most respects.

Quote:
Originally Posted by M0FYA Andy View Post
What is the reason for the mains earth connected to chassis via a 0.01uF capacitor?
Obviously not for safety reasons, so I'm guessing an 'RF earth' connection.
Andy
The snip shows the arrangement for earth and chassis. The earth connection is an RF earth and is part of the aerial / earth system. It can be seen from the circuit that as well as C26 a couple of other components need rated at mains voltage in case the mains plug is incorrectly wired.


Quote:
Originally Posted by Nuvistor View Post
Not sure what type of control knobs are fitted but if they use grub screws remember to fill the holes with wax so that the brass screw cannot be touched.
The knobs are pull off types but there is an insulating sleeve over the control shafts that cannot be removed while the chassis is in the cabinet.
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