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					Originally Posted by  Mike Kelly
					 
				 
				The other common type was the type A mk 3 , which is smaller than the B 2 set . I had one of those too . 
			
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 I have an A mk3 which came from Australia - it's been  modified with an internal PSU (as far as I can tell) to work with either "Batt" or "Gen" according to the stencilling on the pull/push switch... so, no "Mains" power option. The mods look professionaly done - ie not a ham radio mod - but noone can tell me who and when - have approached the Australian War Memorial Museum, but noone there was able to advise.
Tim