First, I realise this perhaps might be either OT or TECH, but I 
thought it might have information value.

I discovered today a new definition used by Chinese gaming machine 
designers for Neutral/Return - they call it  NATURAL - I thought it 
was some sort of brand marking until I realised the PCB had Live ---- 
Natural markings around the mains in socket.

Also the negative symbol they are using for an electrolytic capacitor 
resembles a washtub with a plunger inserted in it.

I vaguely recall seeing something similar many moons ago, but I would 
suggest both these markings are very non standard these days.

Colin
--
cdb,   16/09/2009
 
--




colin@btech-online.co.uk

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