If you have not found out the hard way - there is no way to boot a TK25
on a PDP-11/73A (dual height) CPU with the DEC MXV11-B2 boot ROMs.
The boot code is as follows.....

	7776/	 46522
		 12701
		172522
		 10102
		  5000
		105711
		100376
		 10704
		112737
		   200
		172523
		  5242
		105711
		100376
		  5711
		   240
		  5007

start at 10000G *NOT* 7776

