7x 1mm screws with little washers and pads of silicone under the heads,
through holes in a plate with a reaction frame fitted, and screwed to
the DAT drum. 40 seconds of low heat hot air and the circlip pliers as a
lever and the bottom drum came away. Leaving the ball race on the drive
and the drum separating from the outer section of the race. Upper
ferrite former for thre upper coupling coil seems to be glued to the
central lump. Desoldered at the 4 solder joins but not yet tried heating
the ferrite to see if it comes away. Under that is the head mount
screws. The heads are about 80% the size of VHS heads, and certainly
thinner, will have to find a scrapped 8mm set of heads